As filed with the Securities and Exchange Commission on February 4, 2026.

Registration No. 333-

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-3

REGISTRATION STATEMENT

UNDER THE SECURITIES ACT OF 1933

Flowco Holdings Inc.
(Exact name of registrant as specified in its charter)

Joseph R. Edwards

President and Chief Executive Officer

1300 Post Oak Blvd., Suite 450

Houston, Texas 77056

Telephone: 713-997-4877

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Approximate date of commencement of proposed sale to the public: As soon as practicable after this registration statement is declared effective.

If the only securities being registered on the Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box: ☐

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box: ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

In this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rude 462(e) under the Securities Act, check the following box. ☐

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) of the Securities Act, check the following box. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

The Registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended or until the Registration Statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

The information in this prospectus is not complete and may be changed. These securities may not be sold until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell, nor does it seek an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

Subject to completion, dated February 4, 2026.

PROSPECTUS

FLOWCO HOLDINGS INC.

$500,000,000

Class A Common Stock

Preferred Stock

Rights

Warrants

Units

Up to 57,530,845 Shares of Class A Common Stock Offered by the Selling Stockholders

Flowco Holdings Inc. (“Flowco,” “we,” “us,” or the “Company”), a Delaware corporation may from time to time offer and sell up to $500,000,000, together or separately, in one or more offerings of our Class A common stock, par value $0.0001 per share (“Class A common stock”) and our preferred stock, par value $0.0001 per share (“preferred stock”), which we may issue in one or more series, rights (“rights”) and (“warrants”) warrants to purchase our Class A common stock or preferred stock, and units consisting of one or more of the same, or any combination thereof (collectively, the “securities”).

This prospectus also relates to the offer and resale from time to time in one or more offerings by the selling stockholders named in this prospectus (together with their permitted transferees and assignees or other successors, the “selling stockholders”) of an aggregate of up to 57,530,845 shares of Class A common stock. We will not receive any proceeds from the sale of shares of Class A common stock by the selling stockholders.

This prospectus describes some of the general terms and conditions that may apply to the securities offered by this prospectus. Each time we or any of the selling stockholders offer and sell securities, we or such selling stockholders will provide a supplement to this prospectus that contains specific information about the offering and, if applicable, the selling stockholders, as well as the amounts, prices and terms of the securities. The supplement may also add, update or change information contained in this prospectus with respect to that offering. You should carefully read this prospectus and the applicable prospectus supplement before you invest in any of our securities.

We and the selling stockholders may offer and sell the securities described in this prospectus and any prospectus supplement to or through on or more underwriters, dealers and agents, or directly to purchasers, or through a combination of these methods. The timing and amount of any sale by the selling stockholders are within the sole discretion of the selling stockholders. There can be no assurances that the selling stockholders will sell any or all of the securities offered under this prospectus. For further information regarding the possible methods by which the shares may be distributed, see the section titled “Plan of Distribution” beginning on page 17 of this prospectus.

Our Class A common stock is listed on the New York Stock Exchange (“NYSE”) and the NYSE Texas, Inc. (“NYSE Texas”) under the trading symbol “FLOC”. On February 3, 2026, the last reported sale price of our Class A common stock was $22.13 per share. We will provide information in the applicable prospectus supplement for the trading market, if any, for any preferred stock we may offer.

We are an “emerging growth company,” as defined in Section 2(a) of the Securities Act of 1933, as amended (the “Securities Act”), and as such, have elected to comply with reduced disclosure and public reporting requirements for this prospectus and the documents incorporated by reference herein and in future filings.

Investing in our securities involves risks. See “Risk Factors” beginning on page 4 of this prospectus and in any applicable prospectus supplement and the documents incorporated by reference in this prospectus or any applicable prospectus supplement to read about factors you should consider before buying our securities.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION (THE “SEC”) NOR ANY STATE SECURITIES COMMISSION OR OTHER REGULATORY BODY HAS APPROVED OR DISAPPROVED OF THE SECURITIES OR PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

The date of this prospectus is , 2026.

TABLE OF CONTENTS

Neither we nor the selling stockholders have authorized anyone to give you any information other than in this prospectus and the information incorporated by reference herein. We and the selling stockholders can provide no assurances as to the reliability of any other information that others may give you. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained in this prospectus or in any free writing prospectus that we file with the Commission. This prospectus is an offer to sell only the shares offered by this prospectus, but only under circumstances and in jurisdictions where it is lawful to do so. You should assume that the information contained in this prospectus is current only as of its date regardless of the time of delivery of this prospectus or of any sale of our Class A common stock. Our business, financial condition, results of operations and prospects may have changed since that date.

For investors outside the United States: We have not, and the selling stockholders have not, done anything that would permit this offering or the possession or distribution of this prospectus or any free writing prospectus we may provide to you in connection with this offering in any jurisdiction where action for purpose is required, other than in the United States. Persons outside the United States who come into possession of this prospectus must inform themselves about, and observe any restrictions relating to, the offering of the shares of Class A common stock and the distribution of this prospectus outside the United States.

ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement on Form S-3 that we filed with the SEC utilizing a “shelf” registration process. Under this shelf registration process, we may offer and sell from time to time, together or separately, in one or more offerings, any combination of the securities described in this prospectus up to $500,000,000, and the selling stockholders may offer and sell from time to time, in one or more offerings, up to 57,530,845 shares of Class A common stock as described in this prospectus.

This prospectus provides you with a general description of the securities that we or the selling stockholders may offer from time to time. Each time we offer and sell securities, we will, and each time the selling stockholders sell securities, the selling stockholders may, if required, provide an accompanying prospectus supplement that will contain specific information about the terms of that offering, including, but not limited to, the specific amounts, prices and terms of the securities offered. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. The accompanying prospectus supplement or free writing prospectus may also add, update, change or supersede the information contained in this prospectus. If information varies between this prospectus and the accompanying prospectus supplement or free writing prospectus, you should rely on the information in the accompanying prospectus supplement or free writing prospectus, as applicable. You should carefully read both this prospectus and any accompanying prospectus supplement (and any free writing prospectus), together with additional information described below under the headings “Where You Can Find More Information” and “Incorporation by Reference.”

You should read carefully the entire prospectus and any applicable prospectus supplement, as well as the documents incorporated by reference in this prospectus, before making an investment decision.

When used in this prospectus, except where the context otherwise requires, the terms “we,” “us,” “our” and “the Company” refer to Flowco Holdings Inc. and its consolidated subsidiaries.

TRADEMARKS

This prospectus includes our trademarks and trade names which are protected under applicable intellectual property laws and are our property. This prospectus also contains trademarks, trade names and service marks of other companies, which are the property of their respective owners. Solely for convenience, trademarks, trade names and service marks referred to in this prospectus may appear without the ®, ™ or SM symbols, but such references are not intended to indicate, in any way, that we will not assert, to the fullest extent permitted under applicable law, our rights or the right of the applicable licensor to these trademarks, trade names and service marks. We do not intend our use or display of other parties’ trademarks, trade names or service marks to imply, and such use or display should not be construed to imply, a relationship with, or endorsement or sponsorship of us by, these other parties.

WHERE YOU CAN FIND MORE INFORMATION

We have filed with the SEC a registration statement on Form S-3 under the Securities Act with respect to the offer and sale of the securities covered hereby. This prospectus does not contain all of the information set forth in the registration statement or the exhibits and schedules filed with the registration statement. For further information about us and the securities offered hereby, we refer you to the registration statement and the exhibits filed with the registration statement. Statements contained in this prospectus regarding the contents of any contract or any other document that is filed as an exhibit to the registration statement are not necessarily complete, and each such statement is qualified in all respects by reference to the full text of such contract or other document filed as an exhibit to the registration statement.

We file annual, quarterly and current reports, proxy statements and other information with the SEC. The SEC maintains a website (http://www.sec.gov) that contains reports, proxy and information statements, and other information regarding issuers, including us, that file electronically with the SEC. We also make available, free of

charge, on or through our website (www.flowco-inc.com) our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, Proxy Statements on Schedule 14A and, if applicable, amendments to those reports, as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC. The content of our website is not incorporated by reference in this prospectus, and you should not consider it a part of this prospectus.

You may request a copy of any of our filings or any of the documents incorporated by reference into this prospectus (other than exhibits, unless they are specifically incorporated by reference into those documents) at not cost by writing or calling: Flowco Holdings Inc., 1300 Post Oak Blvd., Suite 450, Houston Texas 77056, Attention: Investor Relations, Telephone: (888) 759-0109.

INCORPORATION OF CERTAIN INFORMATION BY REFERENCE

The SEC allows us to “incorporate by reference” information from other documents that we file with it, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be part of this prospectus, and information that we file later with the SEC will automatically update and supersede this information. Information in this prospectus supersedes information incorporated by reference that we filed with the SEC prior to the date of this prospectus.

We incorporate by reference into this prospectus the information or documents listed below that we have filed with the SEC, provided, however, that except as specifically provided below, we are not incorporating any documents or portions of documents deemed to have been furnished rather than filed in accordance with SEC rules:

All reports and other documents that we file with the SEC under Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act after the date of the initial registration statement and prior to the effectiveness of the registration statement, and after the date of this prospectus but before the termination of the offering of the securities hereunder will also be considered to be incorporated by reference into this prospectus from the date of the filing of these reports and documents, and will supersede the information herein; provided, however, that all reports, exhibits and other information that we “furnish” to the SEC will not be considered incorporated by reference into this prospectus.

You may obtain copies of any of these documents, free of charge, by contacting us at the address or telephone number provided under “Where You Can Find More Information.”

OUR COMPANY

We are a leading provider of production optimization, artificial lift and methane abatement solutions for oil and natural gas industry. Our ability to execute our strategy is also subject to certain risks. Our products and services include a full range of equipment and technology solutions that enable our customers to efficiently and cost-effectively maximize the profitability and economic lifespan of the production phase of their operations. Our principal products and services are organized into two business segments: (i) Production Solutions; and (ii) Natural Gas Technologies. Our core technologies include high pressure gas lift, conventional gas lift, plunger lift and vapor recovery unit solutions, all of which are overlaid by our proprietary digital technologies and solutions that enable real-time remote monitoring and control to maximize efficiencies for our products and services.

Shares of our Class A common stock trade on the NYSE and the NYSE Texas under the ticker symbol “FLOC”.

Our principal executive offices are located at 1300 Post Oak Blvd., Suite 450, Houston, Texas, 77056. Our telephone number is (713) 994-4877. Our website address is www.flowco-inc.com. The information on our website is deemed not to be incorporated by reference in this prospectus.

RISK FACTORS

Investing in our securities offered pursuant to this prospectus involves substantial risk. Before deciding to invest in our securities, you should carefully consider the risk factors contained in our most recent Annual Report on Form 10-K, and any subsequent quarterly reports on Form 10-Q or current reports, which are incorporated by reference herein, as the same may be updated from time to time by our subsequent filings under the Exchange Act, together with all of the other information contained in this prospectus, in any prospectus supplement and the information incorporated by reference herein and therein. If any of these risks occurs, our business, financial condition, liquidity, results of operations or capital position could be materially affected, which could cause the trading price of our securities to decline, resulting in a loss of all or part of your investment.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus contains forward-looking statements. All statements other than statements of historical facts contained in this prospectus may be forward-looking statements. Statements regarding our future results of operations and financial position, business strategy and plans and objectives of management for future operations, including, among others, statements regarding expected growth, future capital expenditures and debt service obligations, are forward-looking statements. In some cases, you can identify forward-looking statements by terms, such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “could,” “intends,” “targets,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential” or “continue” or the negative of these terms or other similar expressions. Accordingly, we caution you that any such forward-looking statements are not guarantees of future performance and are subject to risks, assumptions and uncertainties that are difficult to predict. Although we believe that the expectations reflected in these forward-looking statements are reasonable as of the date made, actual results may prove to be materially different from the results expressed or implied by the forward-looking statements.

Some factors that could cause our actual results to differ materially from those indicated in these forward-looking statements include, but are not limited to, the following:

For more information regarding these and other risks and uncertainties we face, see “Part 1. Item 1A. Risk Factors,” of our Annual Report on Form 10-K and any subsequent filings. The foregoing factors should not be construed as exhaustive and should be read together with the other cautionary statements included in this prospectus. If one or more events related to these or other risks or uncertainties materialize, or if our underlying assumptions prove to be incorrect, actual results may differ materially from what we anticipate. Many of the important factors that will determine these results are beyond our ability to control or predict. Accordingly, you should not place undue reliance on any such forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made, and, except as otherwise required by law, we do not undertake any obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments, or otherwise. New factors emerge from time to time, and it is not possible for us to predict which will arise. In addition, we cannot assess the impact of each factor on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

USE OF PROCEEDS

Unless we inform you otherwise in a prospectus supplement or free writing prospectus, we intend to use the net proceeds from the securities we are offering for general corporate purposes. This may include, among other things, additions to working capital, repayment or refinancing of existing indebtedness or other corporate obligations, financing of capital expenditures and acquisitions and investment in existing and future projects. Any specific allocation of the net proceeds of an offering of Securities to a specific purpose will be determined at the time of the offering and will be described in an accompanying prospectus supplement or free writing prospectus.

The selling stockholders may offer and sell up to an aggregate of 57,530,845 shares of Class A common stock under this prospectus. Accordingly, we will not receive any proceeds from the sales of Class A common stock sold by the selling stockholders. We have agreed to pay certain expenses related to the registration of the offer and sale of the shares of Class A common stock pursuant to the registration statement of which this prospectus forms a part. The selling stockholders will bear all commissions and discounts, if any, attributable to the sale of the shares of Class A common stock by the selling stockholders. See the section entitled “Selling Stockholders.”

SELLING STOCKHOLDERS

This prospectus also relates to the offer and sale from time to time of up to 57,530,845 shares of Class A common stock, including shares of Class A common stock issuable upon redemption of LLC Units, by the selling stockholders.

The table below and accompanying footnotes lists the selling stockholders and information regarding the ownership of the shares of Class A common stock and shares of Class B common stock held by each selling stockholder supplied to us by each selling stockholder and such information is as of January 30, 2026 (except as otherwise noted). We have not sought to verify such information. We believe, based on information supplied by each selling stockholder, that except as may otherwise be indicated in the footnotes to the table below, each selling stockholder has sole voting and dispositive power with respect to the shares of common stock reported as beneficially owned by it.

Because each selling stockholders identified in the table may dispose of some or all of the shares of common stock owned by it that are included in this prospectus, and because there are currently no agreements, arrangements or understandings with respect to the sale of any of the shares of common stock, no estimate can be given as to the number of the shares of common stock available for resale hereby that will be held by each selling stockholder upon termination of this offering. In addition, each selling stockholder may have sold, transferred or otherwise disposed of, or may sell, transfer or otherwise dispose of, at any time and from time to time, the shares of common stock they hold in transactions exempt from the registration requirements of the Securities Act after the date on which the selling stockholder provided the information set forth in the table below. We have, therefore, assumed for the purposes of the following table, that each selling stockholder will sell all of the shares of common stock beneficially owned by it that are covered by this prospectus. Each selling stockholder is not obligated to sell any of the shares of common stock offered by this prospectus. The percent of beneficial ownership for the selling stockholders is based on 29,647,189 shares of Class A common stock and 60,015,566 shares of Class B common stock outstanding as of January 30, 2026.

Except as set forth below, the selling stockholders are investors who have had no position, office, or other material relationship (other than as a purchaser of securities) with us or any of our affiliates within the past three years. Our knowledge is based on information provided by selling stockholder questionnaires in connection with the filing of this prospectus.

The number of shares offered for sale by the selling stockholders include both shares issued and outstanding and shares issuable upon redemption of LLC Units. However, with respect to Class B common stock beneficially owned by selling stockholders other than (i) selling stockholders controlled by GEC Advisors LLC or (ii) the White Deer Entities (as defined below), the Class A common stock beneficially owned by such holders does not include shares shares issuable upon redemption of outstanding LLC Units, based on the company’s option to redeem such shares for cash.

Information about the selling stockholders may change over time. Any changed information will be set forth in an amendment to the registration statement or supplement to this prospectus, to the extent required by law.

* Represents beneficial ownership less than one percent.

(1) GEC Capital Group III LP is the general partner of each of GEC Partners III LP and GEC Partners III-GI LP, and GEC Group Ltd. is the general partner of GEC Capital Group III LP. GEC Capital Group III-B LP is the managing member or general partner of each of GEC Estis Co-Invest II LLC, GEC Partners III-B LP and GEC Partners III-B GI LP, and GEC Group B Ltd. is the general partner of GEC Capital Group III-B LP. Mr. Fairbanks is the manager and controlling member of GEC, GEC Group Ltd. and GEC Group B. Ltd, as well as GEC Advisors LLC, a registered investment advisor to the funds that beneficially own such shares, with discretionary authority over each such fund's accounts. Jonathan B. Fairbanks, a director and Chairperson of the Company’s board of directors, controls GEC Advisors LLC.

(2) WD Thunder CV GP LP ("CV GP") is the general partner of each of WD Thunder CV IND LP ("CF IND"), WD Thunder CV Parallel LP ("CF Parallel") and WD Thunder CV LP ("CF Main"), and is the sole manager of WDE Flogistix Aggregate LLC ("WDE"). CV GP is controlled by WD Thunder CV Ultimate GP LLC ("WD GP," together with CV GP, CF IND, CF Parallel, CF Main and WDE, the “White Deer Entities”). WD GP is controlled by its board of managers which consists of four members. Ben A. Guill, a director of the Company, is a Founding Partner of White Deer Management LLC, an affiliate of the White Deer Entities.

(3) Paul W. Hobby, a director of the Company, is one of three managers of the general partner of Genesis Park II, LP.

(4) Chad Roberts serves as our Executive Vice President, Production Solutions. Class A common stock offered hereby includes shares issuable upon redemption of 568,016 shares of Class B common stock and Common Units owned directly as of February 3, 2026, and does not include other shares of Class A common stock beneficially owned.

The information set forth in “Certain Relationships and Related Party Transactions, and Director Independence” in our Annual Report regarding the selling stockholders and their affiliates is incorporated herein by reference.

DESCRIPTION OF CAPITAL STOCK

The following description of our capital stock is only a summary, and it does not contain all the information that may be important to you. This description does not purport to be complete and is qualified in its entirety by reference to the full text of the General Corporation Law of the State of Delaware (“DGCL”), as it may be amended from time to time, and to the terms of our amended and restated certificate of incorporation (the “Certificate of Incorporation”) and our amended and restated bylaws (the “Bylaws”), as each may be amended from time to time, which are incorporated by reference as exhibits to the registration statement of which this prospectus forms a part. See “Where You Can Find More Information.”

General

We are authorized to issue 300,000,000 shares of Class A common stock, 100,000,000 shares of Class B common stock, par value $0.0001 per share, and 10,000,000 shares of preferred stock. As of February 4, 2026, there were 29,647,189 shares of Class A common stock issued and outstanding and 60,015,566 shares of Class B common stock issued and outstanding. As of February 4, 2026, there were no shares of preferred stock outstanding.

Common Stock

Class A Common Stock

Holders of shares of Class A common stock are entitled to one vote for each share held of record on all matters submitted to a vote of stockholders and on which the holders of the Class A common stock are entitled to vote.

Holders of shares of Class A common stock are entitled to receive dividends when and if declared by our board of directors out of funds legally available therefor, subject to any statutory or contractual restrictions on the payment of dividends and to any restrictions on the payment of dividends imposed by the terms of any outstanding preferred stock.

Upon our dissolution or liquidation, after payment in full of all amounts required to be paid to creditors and to the holders of preferred stock having liquidation preferences, if any, the holders of shares of Class A common stock will be entitled to receive pro rata our remaining assets available for distribution.

Holders of shares of Class A common stock do not have preemptive, subscription, redemption or conversion rights. There is no redemption or sinking fund provisions applicable to the Class A common stock.

Holders of shares of Class A common stock will vote together with holders of our Class B common stock, as a single class on all matters presented to our stockholders for their vote or approval, except for certain amendments to the Certificate of Incorporation or as otherwise required by applicable law or the Certificate of Incorporation. Any amendment to the Certificate of Incorporation that gives holders of the Class B common stock (i) any rights to receive dividends (subject to certain exceptions) or any other kind of distribution, (ii) any right to convert into or be exchanged for shares of Class A common stock, or (iii) any other economic rights (except for payments in cash in lieu of receipt of fractional stock) shall, in addition to the vote of the holders of shares of any class or series of our capital stock required by law, also require the affirmative vote of the holders of a majority of the voting power of the outstanding shares of Class A common stock voting separately as a class.

Class B Common Stock

Each share of our Class B common stock entitles its holders to one vote per share on all matters presented to our stockholders generally.

Shares of Class B common stock will be issued in the future only to the extent necessary to maintain a one-to-one ratio between the number of common units of Flowco MergeCo LLC (“LLC Interests”) held by the Existing Owners and the number of shares of Class B common stock issued to the Existing Owners. Shares of Class B common stock

are transferable only together with an equal number of LLC Interests. Only permitted transferees of LLC Interests held by the Existing Owners will be permitted transferees of Class B common stock.

Holders of shares of Class B common stock will vote together with holders of our Class A common stock as a single class on all matters presented to our stockholders for their vote or approval, except for certain amendments to the Certificate of Incorporation relating to the terms, number of shares, powers, designations, preferences or relative, participating or other special rights, or to qualifications, limitations or restrictions thereof, of one or more outstanding series of preferred stock if the holders of such affected series are entitled, either separately or together with the holders of one or more other such series, to vote thereon or as otherwise required by applicable law or the Certificate of Incorporation.

Except in certain limited circumstances, holders of our Class B common stock do not have any right to receive dividends or to receive a distribution upon dissolution or liquidation. Additionally, holders of shares of Class B common stock do not have preemptive, subscription, redemption or conversion rights. There is no redemption or sinking fund provisions applicable to the Class B common stock. Upon the redemption or exchange of an LLC Interest (together with a share of Class B common stock) for Class A common stock, the shares of Class B common stock will be automatically transferred to the Company for no consideration and will be canceled and no longer outstanding. Such shares of Class B common stock may not be reissued. Any amendment of the Certificate of Incorporation that gives holders of our Class B common stock (i) any rights to receive dividends or any other kind of distribution, (ii) any right to convert into or be exchanged for Class A common stock or (iii) any other economic rights will require, in addition to stockholder approval, the affirmative vote of holders of our Class A common stock voting separately as a class.

Preferred Stock

Under the terms of the Certificate of Incorporation, our board of directors is authorized to direct us to issue shares of preferred stock in one or more series without stockholder approval. Our board of directors has the discretion to determine the rights, preferences, privileges and restrictions, including voting rights, dividend rights, conversion rights, redemption privileges and liquidation preferences, of each series of preferred stock.

We could issue a series of preferred stock that could, depending on the terms of the series, impede or discourage an acquisition attempt or other transaction that some, or a majority, of the holders of our Class A common stock might believe to be in their best interests or in which the holders of our Class A common stock might receive a premium over the market price of the shares of Class A common stock. Additionally, the issuance of preferred stock may adversely affect the rights of holders of our Class A common stock by restricting dividends on the Class A common stock, diluting the voting power of the Class A common stock or subordinating the rights of the Class A common stock to distributions upon a liquidation, dissolution or winding up or other event. As a result of these or other factors, the issuance of preferred stock could have an adverse impact on the market price of our Class A common stock.

Forum Selection

The Certificate of Incorporation provides (i) (a) any derivative action or proceeding brought on behalf of the Company under Delaware law, (b) any action asserting a claim of breach of a fiduciary duty owed by any current or former director, officer, other employee or stockholder of the Company to the Company or the Company’s stockholders, (c) any action asserting a claim arising pursuant to any provision of the DGCL, the Certificate of Incorporation or the Bylaws (as either may be amended or restated) or as to which the DGCL confers jurisdiction on the Court of Chancery of the State of Delaware or (d) any action asserting a claim governed by the internal affairs doctrine of the law of the State of Delaware shall, or (e) any other action asserting an “internal corporate claim,” as defined in the DGCL, to the fullest extent permitted by law, be exclusively brought in the Court of Chancery of the State of Delaware or, if such court does not have subject matter jurisdiction thereof, the federal district court of the State of Delaware; and (ii) the federal district courts of the United States shall be the exclusive forum for the resolution of any complaint asserting a

cause of action arising under the Securities Act; provided, however, that the foregoing choice of forum provision shall not apply to claims seeking to enforce any liability or duty created by the Securities Exchange Act of 1934, as amended, or any other claim for which the U.S. federal courts have exclusive jurisdiction. The Certificate of Incorporation will also provide that, to the fullest extent permitted by law, any person or entity purchasing or otherwise acquiring or holding any interest in shares of our capital stock shall be deemed to have notice of and consented to the foregoing. By agreeing to this provision, however, stockholders will not be deemed to have waived our compliance with the federal securities laws and the rules and regulations thereunder.

Dividends

Declaration and payment of any dividend will be subject to the discretion of our board of directors. The time and amount of dividends will be dependent upon our business prospects, results of operations, financial condition, cash requirements and availability, debt repayment obligations, capital expenditure needs, contractual restrictions, covenants in the agreements governing our current and future indebtedness, industry trends, the provisions of Delaware law affecting the payment of distributions to stockholders and any other factors our board of directors may consider relevant.

Anti-Takeover Provisions

The Certificate of Incorporation and Bylaws, contain provisions that may delay, defer or discourage another party from acquiring control of us. We expect that these provisions, which are summarized below, will discourage coercive takeover practices or inadequate takeover bids. These provisions are also designed to encourage persons seeking to acquire control of us to first negotiate with our board of directors, which we believe may result in an improvement of the terms of any such acquisition in favor of our stockholders. However, they also give our board of directors the power to discourage acquisitions that some stockholders may favor.

Authorized but Unissued Shares

The authorized but unissued shares of our common stock and our preferred stock are available for future issuance without stockholder approval, subject to any limitations imposed by the rules and regulations of the NYSE. These additional shares may be used for a variety of corporate finance transactions, acquisitions and employee benefit plans and funding of redemptions of LLC Interests. The existence of authorized but unissued and unreserved common stock and preferred stock could make more difficult or discourage an attempt to obtain control of us by means of a proxy contest, tender offer, merger or otherwise.

Classified Board of Directors

The Certificate of Incorporation provides that our board of directors will be divided into three classes, with the classes as nearly equal in number as possible and each class serving three-year staggered terms. Pursuant to the terms of the Stockholders Agreement, directors designated by GEC and White Deer may only be removed with or without cause by the request of the party entitled to designate such director. In all other cases and at any other time, directors may only be removed from our board of directors for cause by the affirmative vote of a majority of the shares entitled to vote. These provisions may have the effect of deferring, delaying or discouraging hostile takeovers, or changes in control of us or our management.

Special Meetings of Stockholders; Action by Written Consent of Stockholders

The Bylaws provide that only the chairperson of our board of directors or a majority of our board of directors may call special meetings of our stockholders. The Certificate of Incorporation provides that, at any time when GEC and its Affiliates beneficially own, in the aggregate, at least 35% of the voting power of our outstanding capital stock, our stockholders may take action by consent without a meeting, and at any time when GEC and its Affiliates beneficially own, in the aggregate, less than 35% of the voting power of our outstanding capital stock, our stockholders may not take action by consent without a meeting, but may only take action at a meeting of stockholders. These provisions

may delay the ability of our stockholders to force consideration of a proposal or for stockholders controlling a majority of our capital stock to take any action, including the removal of directors.

Advance Notice Requirements for Stockholder Proposals and Director Nominations

The Bylaws establish an advance notice procedure for stockholder proposals to be brought before an annual meeting of stockholders, including proposed nominations of candidates for election to our board of directors. In order for any matter to be “properly brought” before a meeting, a stockholder will have to comply with advance notice and duration of ownership requirements and provide us with certain information. Stockholders at an annual meeting may only consider proposals or nominations specified in the notice of meeting or brought before the meeting by or at the direction of our board of directors or by a qualified stockholder of record on the record date for the meeting, who is entitled to vote at the meeting and who has delivered timely written notice in proper form to our secretary of the stockholder’s intention to bring such business before the meeting. These provisions could have the effect of delaying stockholder actions that are favored by the holders of a majority of our outstanding voting securities until the next stockholder meeting.

No Cumulative Voting

The DGCL provides that stockholders are not entitled to cumulate votes in the election of directors unless a corporation’s certificate of incorporation provides otherwise. The Certificate of Incorporation does not provide for cumulative voting.

Amendment of Certificate of Incorporation or Bylaws

The DGCL provides generally that the affirmative vote of a majority of the shares entitled to vote on any matter is required to amend a corporation’s certificate of incorporation or bylaws, unless a corporation’s certificate of incorporation or bylaws, as the case may be, requires a greater percentage. The Certificate of Incorporation provides that the affirmative vote of holders of at least 66-2/3% of the voting power of all of the then-outstanding shares of capital stock, voting as a single class, will be required to amend certain provisions of the Certificate of Incorporation, including provisions relating to amending the Bylaws, the size of our board, removal of directors, director and officer liability, vacancies on our board, special meetings, stockholder notices, actions by written consent and exclusive forum. The Certificate of Incorporation provides that the board of directors may adopt, amend, alter, or repeal the Bylaws. In addition, the Certificate of Incorporation provides that the stockholders may not adopt, amend, alter or repeal the Bylaws unless such action is approved, in addition to any other vote required by the Certificate of Incorporation, (a) prior to the time when GEC and its Affiliates cease to beneficially own, in the aggregate, 35% of the voting power of the then outstanding shares of our capital stock, by the affirmative vote of the holders of at least a majority of the voting power of all of the then-outstanding shares of our capital stock entitled to vote thereon, voting together as a single class, or (b) from and after the time when GEC and its Affiliates cease to beneficially own, in the aggregate, 35% of the voting power of the then outstanding shares of our capital stock, by the affirmative vote of the holders of at least 66-2/3% of the voting power of all of the then-outstanding shares of our capital stock entitled to vote thereon, voting together as a single class. The Bylaws may be amended or repealed by a majority vote of our board of directors or by the affirmative vote of a majority of the votes which all our stockholders would be eligible to cast in an election of directors.

Section 203 of the DGCL

The Certificate of Incorporation contains a provision opting out of Section 203 of the DGCL. However, the Certificate of Incorporation contains provisions that are similar to Section 203. Specifically, the Certificate of Incorporation provides that, subject to certain exceptions, we will not be able to engage in a “business combination” with any “interested stockholder” for three years following the date that the person became an interested stockholder, unless the interested stockholder attained such status with the approval of our board of directors or unless the business combination is approved in a prescribed manner. A “business combination” includes, among other things, a merger

or consolidation involving us and the “interested stockholder” and the sale of more than 10% of our assets. In general, an “interested stockholder” is any entity or person beneficially owning 15% or more of our outstanding voting stock and any entity or person affiliated with or controlling or controlled by such entity or person, but will exclude GEC, White Deer and their affiliates.

Limitations on Liability and Indemnification of Officers and Directors

The Certificate of Incorporation and the Bylaws provide indemnification for our directors and officers to the fullest extent permitted by the DGCL. We have entered into indemnification agreements with each of our directors and executive officers that may, in some cases, be broader than the specific indemnification provisions contained under Delaware law. In addition, as permitted by Delaware law, the Certificate of Incorporation includes provisions that eliminate the personal liability of our directors for monetary damages resulting from breaches of certain fiduciary duties as a director. The effect of this provision is to restrict our rights and the rights of our stockholders in derivative suits to recover monetary damages against a director for breach of fiduciary duties as a director.

These provisions may be held not to be enforceable for violations of the federal securities laws of the United States.

Corporate Opportunity Doctrine

Delaware law permits corporations to adopt provisions renouncing any interest or expectancy in certain opportunities that are presented to the corporation or its officers, directors or stockholders. The Certificate of Incorporation will, to the maximum extent permitted from time to time by Delaware law, renounce any interest or expectancy that we have in, or right to be offered an opportunity to participate in, specified business opportunities that are from time to time presented to GEC, White Deer or any of our directors who are employees of or affiliated with GEC, White Deer or any director or stockholder who is not employed by us or our subsidiaries. The Certificate of Incorporation provides that, to the fullest extent permitted by law, GEC, White Deer or any of our directors who are employees of or affiliated with GEC, White Deer or any director or stockholder who is not employed by us or our affiliates will not have any duty to refrain from (i) engaging in a corporate opportunity in the same or similar lines of business in which we or our affiliates now engage or propose to engage or (ii) otherwise competing with us or our affiliates. In addition, to the fullest extent permitted by law, if GEC, White Deer or any of our directors who are employees of or affiliated with GEC, White Deer or any director or stockholder who is not employed by us or our subsidiaries acquires knowledge of a potential transaction or other business opportunity which may be a corporate opportunity for itself or himself or its or his affiliates or for us or our affiliates, such person will have no duty to communicate or offer such transaction or business opportunity to us or any of our affiliates and they may take any such opportunity for themselves or offer it to another person or entity, unless such opportunity was expressly offered to them solely in their capacity as a director, executive officer or employee of us or our affiliates. To the fullest extent permitted by Delaware law, no potential transaction or business opportunity may be deemed to be a corporate opportunity of the corporation or its subsidiaries unless (i) we or our subsidiaries would be permitted to undertake such transaction or opportunity in accordance with the Certificate of Incorporation, (ii) we or our subsidiaries, at such time have sufficient financial resources to undertake such transaction or opportunity, (iii) we have an interest or expectancy in such transaction or opportunity and (iv) such transaction or opportunity would be in the same or similar line of our or our subsidiaries’ business in which we or our subsidiaries are engaged or a line of business that is reasonably related to, or a reasonable extension of, such line of business. The Certificate of Incorporation does not renounce our interest in any business opportunity that is expressly offered to an employee director or employee in his or her capacity as a director or employee of the Company.

Dissenters’ Rights of Appraisal and Payment

Under the DGCL, with certain exceptions, our stockholders will have appraisal rights in connection with a merger or consolidation of the Company. Pursuant to the DGCL, stockholders who properly request and perfect appraisal rights

in connection with such merger or consolidation will have the right to receive payment of the fair value of their shares as determined by the Delaware Court of Chancery.

Stockholders’ Derivative Actions

Under the DGCL, any of our stockholders may bring an action in our name to procure a judgment in our favor, also known as a derivative action, provided that the stockholder bringing the action is a holder of our shares at the time of the transaction to which the action relates or such stockholder’s stock thereafter devolved by operation of law.

Transfer Agent and Registrar

The transfer agent and registrar for our common stock is Computershare Trust Company, N.A.

Trading Symbol and Market

Our Class A common stock is listed on the NYSE and the NYSE Texas under the symbol “FLOC.” There is no public trading market for our Class B common stock.

DESCRIPTION OF RIGHTS

We may issue rights to purchase any combination of common stock, preferred stock or other securities. These rights may be issued independently or together with any other security offered hereby and may or may not be transferable by the stockholder receiving the rights in such offering.

The rights will be issued under rights agreements to be entered into between us and a bank or trust company, as rights agent. The rights agent will act solely as our agent in connection with the certificates representing the rights and will not assume any obligation or relationship of agency or trust with any holders of rights certificates or beneficial owners of rights. You should read the particular terms of the rights, which will be described in more detail in any applicable prospectus supplement. The particular terms of any rights offered by any prospectus supplement, and the extent to which the general provisions summarized below may apply to the offered securities, will be described in a prospectus supplement.

Any applicable prospectus supplement will describe the terms of rights we offer, the rights agreement relating to the rights and the certificates representing the rights, including the following:

DESCRIPTION OF WARRANTS

We may issue warrants to purchase Class A common stock, preferred stock or any combination thereof. Such warrants may be issued independently or together with any such securities and may be attached or separate from such securities. We will issue each series of warrants under a separate warrant agreement to be entered into between us and a warrant agent. The warrant agent will act solely as our agent and will not assume any obligation or relationship of agency for or with holders or beneficial owners of warrants. The following summary of certain provisions of the warrants does not purport to be complete and is subject to, and qualified in its entirety by reference to, the provisions of the warrant agreement that will be filed with the SEC in connection with any offering of such warrants.

General

The prospectus supplement relating to any offering of warrants will describe the particular terms of the warrants being offered, including the following:

Amendments and Supplements to Warrant Agreement

We and the warrant agent may amend or supplement the warrant agreement for a series of warrants without the consent of the holders of the warrants issued thereunder to effect changes that are not inconsistent with the provisions of the warrants and that do not materially and adversely affect the interests of the holders of the warrants.

DESCRIPTION OF UNITS

We may issue units of securities consisting of one or more of the following securities: common stock, preferred stock, rights, warrants or any combination thereof. We may evidence each series of units issued by unit certificates that we will issue under a separate unit agreement. We may enter into unit agreements with a unit agent. Each unit agent will be a bank or trust company that we select. You should read the particular terms of these documents, which will be described in more detail in the applicable prospectus supplement.

If we offer any units, certain terms of that series of units will be described in the applicable prospectus supplement, including, without limitation, the following, as applicable:

PLAN OF DISTRIBUTION

We and the selling stockholders may, from time to time, sell any or all of the securities offered by this prospectus either directly by us or such individual, or through underwriters, dealers or agents or on any exchange on which the securities offering hereby may from time to time be traded, in the over-the-counter market, or in independently negotiated transactions or otherwise. The securities offered by this prospectus may be distributed from time to time in one or more transactions:

Each time that we or any of the selling stockholders sell securities covered by this prospectus, we or the selling stockholders will provide a prospectus supplement or supplements that will describe the method of distribution and set forth the terms and conditions of the offering of such securities, including the offering price of the securities and the proceeds to us or the selling stockholders, if applicable.

Offers to purchase the securities being offered by this prospectus may be solicited directly. Agents may also be designated to solicit offers to purchase the securities from time to time. Any agent involved in the offer or sale of our securities will be identified in a prospectus supplement.

Sale Through Underwriters or Dealers

If a dealer is utilized in the sale of the securities being offered by this prospectus, the securities will be sold to the dealer, as principal. The dealer may then resell the securities to the public at varying prices to be determined by the dealer at the time of resale.

If an underwriter is utilized in the sale of the securities being offered by this prospectus, an underwriting agreement will be executed with the underwriter at the time of sale and the name of any underwriter will be provided in the prospectus supplement that the underwriter will use to make resales of the securities to the public. In connection with the sale of the securities, we, or the selling stockholders, or the purchasers of securities for whom the underwriter may

act as agent, may compensate the underwriter in the form of underwriting discounts or commissions. The underwriter may sell the securities to or through dealers, and those dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for which they may act as agent. Unless otherwise indicated in a prospectus supplement, an agent will be acting on a best efforts basis and a dealer will purchase securities as a principal, and may then resell the securities at varying prices to be determined by the dealer.

Any compensation paid to underwriters, dealers or agents in connection with the offering of the securities, and any discounts, concessions or commissions allowed by underwriters to participating dealers will be provided in the applicable prospectus supplement. Underwriters, dealers and agents participating in the distribution of the securities may be deemed to be underwriters within the meaning of the Securities Act and any discounts and commissions received by them and any profit realized by them on resale of the securities may be deemed to be underwriting discounts and commissions. We may enter into agreements to indemnify underwriters, dealers and agents against civil liabilities, including liabilities under the Securities Act, or to contribute to payments they may be required to make in respect thereof and to reimburse those persons for certain expenses.

Any shares of Class A common stock will be listed on the NYSE and the NYSE Texas, but any other securities may or may not be listed on a national securities exchange. To facilitate the offering of securities, certain persons participating in the offering may engage in transactions that stabilize, maintain or otherwise affect the price of the securities. This may include over-allotments or short sales of the securities, which involve the sale by persons participating in the offering of more securities than were sold to them. In these circumstances, these persons would cover such over-allotments or short positions by making purchases in the open market or by exercising their over-allotment option, if any. In addition, these persons may stabilize or maintain the price of the securities by bidding for or purchasing securities in the open market or by imposing penalty bids, whereby selling concessions allowed to dealers participating in the offering may be reclaimed if securities sold by them are repurchased in connection with stabilization transactions. The effect of these transactions may be to stabilize or maintain the market price of the securities at a level above that which might otherwise prevail in the open market. These transactions may be discontinued at any time.

We and the selling stockholders may engage in at-the-market offerings into an existing trading market in accordance with Rule 415(a)(4) under the Securities Act. In addition, we may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement so indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions will be an underwriter and, if not identified in this prospectus, will be named in the applicable prospectus supplement (or a post-effective amendment). In addition, we may otherwise loan or pledge securities to a financial institution or other third party that in turn may sell the securities short using this prospectus and an applicable prospectus supplement. Such financial institution or other third party may transfer its economic short position to investors in our securities or in connection with a concurrent offering of other securities.

The specific terms of any lock-up provisions in respect of any given offering will be described in the applicable prospectus supplement.

The underwriters, dealers and agents may engage in transactions with us, or perform services for us, in the ordinary course of business for which they receive compensation.

Direct Sales

We or the selling stockholders may sell the securities directly. In that event, no underwriters or agents would be involved. We or the selling stockholders may use electronic media, including the Internet, to sell the securities offered by this prospectus directly.

Delayed Delivery or Forward Contracts

We or the selling stockholders may authorize agents, underwriters or dealers to solicit offers to purchase securities from us or the selling stockholders at the public offering price set forth in any applicable prospectus supplement under delayed delivery or forward contracts. These contracts would provide for payment and delivery on a specified date in the future at prices determined as described in any applicable prospectus supplement.

At-the-Market Offerings

We, the selling stockholders or their respective underwriters, broker-dealers, or agents may make sales of shares of Class A common stock that are deemed to be an at-the-market offering as defined in Securities Act Rule 415, which includes sales of such shares of Class A common stock made directly on or through the NYSE or the NYSE Texas, the existing trading markets for the shares of Class A common stock, or in the over-the-counter market or otherwise.

Derivative Transactions

We or the selling stockholders may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If any applicable prospectus supplement indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and any applicable prospectus supplement, including in short sale transactions. If so, the third parties may use securities pledged by us or the selling stockholders or borrowed from us the selling stockholders, or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us or the selling stockholders in settlement of those derivatives to close out any related open borrowings of stock. The third parties in these sale transactions will be underwriters and, if not identified in this prospectus, will be identified in any applicable prospectus supplement or in a post-effective amendment to the registration statement of which this prospectus forms a part. Further, in connection with the sale of our Class A common stock or interests therein, we or the selling stockholders may enter into hedging transactions with broker-dealers or other financial institutions, which may in turn engage in short sales of our Class A common stock in the course of hedging the positions they assume. In addition, we or the selling stockholders may otherwise loan or pledge securities to a financial institution or other third party that in turn may sell the securities short using this prospectus. Such financial institution or other third party may transfer its economic short position to investors in our securities or in connection with a concurrent offering of other securities.

Sales by the Selling Stockholders

We are registering 57,530,845 shares of Class A common stock described in this prospectus to permit the resale of these securities by the selling stockholders from time to time after the date of this prospectus. We will not receive any of the proceeds from the sale by the selling stockholders of the securities.

The selling stockholders may act independently of us in making decisions with respect to the timing, manner and size of each of their respective sales. The selling stockholders may make sales of shares of Class A common stock from time to time through one or more methods specified in this “Plan of Distribution” or through a combination of any of such methods or any other method permitted pursuant to applicable law. These sales may be effected in one or more transactions, including:

A selling stockholder that is an entity may elect to make a pro rata in-kind distribution of shares of Class A common stock to its members, limited or general partners, shareholders or other security holders pursuant to the registration statement of which this prospectus is a part by delivering a prospectus. To the extent that such members, limited or general partners, shareholders or other security holders are not affiliates of ours, such members, limited or general partners, shareholders or other security holders would thereby receive freely tradeable shares of Class A common stock pursuant to the distribution through the registration statement.

The selling stockholders may also sell shares of common stock under Rule 144 under the Securities Act, if available, or otherwise as permitted pursuant to applicable law, rather than under this prospectus. The selling stockholders may also transfer and donate the Class A common stock in other circumstances in which case the transferees, donees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus.

The Registration Rights Agreement requires us to indemnify and hold harmless in certain circumstances each selling stockholder, its officers, directors and each Person who controls such selling stockholder (within the meaning of the Securities Act) and any agent thereof, against certain liabilities to which they may become subject in connection with the sale of such securities, including liabilities arising under the Securities Act. The Registration Rights Agreement also requires each selling stockholder to indemnify and hold harmless us in certain circumstances against certain liabilities to which we may become subject in connection with the sale of such securities.

We have agreed to pay certain expenses related to the registration of the offer and sale of the shares of Class A common stock pursuant to the registration statement of which this prospectus forms a part. The selling stockholders will bear all commissions and discounts, if any, attributable to the sale of the shares of Class A common stock by the selling stockholders. We will not receive any of the proceeds from sales of our Class A common stock by selling stockholders included in this offering. There can be no assurances that the selling stockholders will sell any or all of the securities offered under this prospectus.

The selling stockholders and any underwriters, dealers or agents that participate in distribution of the securities may be deemed to be underwriters, and any profit on sale of the securities by them and any discounts, commissions or concessions received by any underwriter, dealer or agent may be deemed to be underwriting discounts and commissions under the Securities Act.

General Information

In connection with the sale of the securities offering by this prospectus, underwriters, dealers or agents may be deemed to have received compensation from us or the selling stockholders in the form of underwriting discounts or commissions and may also receive commissions from securities purchasers for whom they may act as agent. Underwriters may sell the securities to or through dealers, and the dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters or commissions from the purchasers for whom they may act as agent. We will provide in any applicable prospectus supplement any required information regarding any underwriting discounts or other compensation that we or the selling stockholders pay to underwriters or agents in connection with the securities offering, and any discounts, concessions or commissions which underwriters allow to dealers.

We or the selling stockholders may have agreements with the agents, dealers and underwriters to indemnify them against certain civil liabilities, including liabilities under the Securities Act, or to contribute with respect to payments that the agents, dealers or underwriters may be required to make because of those liabilities. Agents, dealers and underwriters, or their affiliates or associates, may be customers of, engage in transactions with or perform services for us or the selling stockholders in the ordinary course of their businesses.

Other than the shares of Class A commons stock, which are listed on the NYSE and the NYSE Texas, each series of securities offered by this prospectus will have no established trading market. We may elect to list any series of securities offered by this prospectus on an exchange, but we are not obligated to do so. It is possible that one or more underwriters may make a market in a series of securities offered by this prospectus. However, they will not be obligated to do so and may discontinue market making at any time without notice. We cannot assure you as to the liquidity of, or the trading market for, any of our securities offered by this prospectus.

In connection with an offering, certain persons participating in the offering may make a market in the securities or engage in transactions that stabilize, maintain or otherwise affect the market price of the securities offered by this prospectus. This may include, among other transactions, over-allotments or short sales of the securities, which involves the sale by persons participating in the offering of more securities than we or the selling stockholders sold to them. In these circumstances, these persons would cover such over-allotments or short positions by making purchases in the open market or by exercising their over-allotment option. As a result, the price of the securities may be higher than the price that might otherwise prevail in the open market. If these activities are commenced, these transactions may be discontinued at any time.

A prospectus and any applicable accompanying prospectus supplement in electronic form may be made available on the websites maintained by the underwriters. The underwriters may agree to allocate a number of securities for sale to their online brokerage account holders. Such allocations of securities for internet distributions will be made on the same basis as other allocations. In addition, securities may be sold by the underwriters to securities dealers who resell securities to online brokerage account holders. To the extent required, this prospectus may be amended or

supplemented from time to time to describe a specific plan of distribution. The place and time of delivery for the securities in respect of which this prospectus is delivered may be set forth in any applicable accompanying prospectus supplement, if required.

LEGAL MATTERS

The validity of the securities offered in this prospectus will be passed upon for us by Sidley Austin LLP, Houston, Texas. Additional legal matters in connection with offerings made by this prospectus for the selling stockholders or any underwriters, dealers, or agents will be named in the applicable prospectus supplement.

EXPERTS

The financial statements incorporated in this prospectus by reference to Flowco Holdings Inc.’s Current Report on Form 8-K dated February 4, 2026, have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

Flowco Holdings Inc.

$500,000,000

Class A Common Stock

Preferred Stock

Rights

Warrants

Units

Up to 57,530,845 Shares of Class A Common Stock

Offered by the Selling Stockholders

PROSPECTUS

, 2026

PART II

INFORMATION NOT REQUIRED IN THE PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

The following table itemizes the expenses incurred by us in connection with the issuance and registration of the securities being registered hereunder (excluding the underwriters’ discount and commission). All amounts shown are estimates except for the SEC registration fee.

* These fees cannot be estimated at this time as they are calculated based on the securities offered and the number of issuances. An estimate of the aggregate expenses in connection with the sale and distribution of the securities being offered will be included in the applicable prospectus supplement.

Item 15. Indemnification of Directors and Officers.

Flowco Holdings Inc.

Section 102 of the General Corporation Law of the State of Delaware (the “DGCL”) permits a corporation to eliminate the personal liability of directors or officers of a corporation to the corporation or its stockholders for monetary damages for a breach of fiduciary duty as a director or officer, except where the director or officer breached his duty of loyalty, failed to act in good faith, engaged in intentional misconduct or knowingly violated a law, authorized the payment of a dividend or approved a stock repurchase or redemption in violation of Delaware corporate law or obtained an improper personal benefit. Our amended and restated certificate of incorporation provides that no director or officer of the Company shall be personally liable to it or its stockholders for monetary damages for any breach of fiduciary duty as a director or officer, notwithstanding any provision of law imposing such liability, except to the extent that the DGCL prohibits the elimination or limitation of liability of directors or officers for breaches of fiduciary duty.

Section 145 of the DGCL provides that a corporation has the power to indemnify a director, officer, employee, or agent of the corporation, or a person serving at the request of the corporation for another corporation, partnership, joint venture, trust or other enterprise in related capacities against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in connection with an action, suit or proceeding to which he was or is a party or is threatened to be made a party to any threatened, ending or completed action, suit or proceeding by reason of such position, if such person acted in good faith and in a manner he reasonably believed to be in or not opposed to the best interests of the corporation, and, in any criminal action or proceeding, had no reasonable cause to believe his conduct was unlawful, except that, in the case of actions brought by or in the right of the corporation, no indemnification shall be made with respect to any claim, issue or matter as to which such person shall have been adjudged to be liable to the corporation unless and only to the extent that the Court of Chancery or other adjudicating court determines that, despite the adjudication of liability but in view of all of the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses which the Court of Chancery or such other court shall deem proper.

Our amended and restated certificate of incorporation and amended and restated bylaws provide indemnification for our directors and officers to the fullest extent permitted by the General Corporation Law of the State of Delaware. We

will indemnify each person who was or is a party or threatened to be made a party to any threatened, pending or completed action, suit or proceeding (other than an action by or in the right of us) by reason of the fact that he or she is or was, or has agreed to become, a director or officer, or is or was serving, or has agreed to serve, at our request as a director, officer, partner, employee or trustee of, or in a similar capacity with, another corporation, partnership, joint venture, trust or other enterprise (all such persons being referred to as an “Indemnitee”), or by reason of any action alleged to have been taken or omitted in such capacity, against all expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred in connection with such action, suit or proceeding and any appeal therefrom, if such Indemnitee acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to, our best interests, and, with respect to any criminal action or proceeding, he or she had no reasonable cause to believe his or her conduct was unlawful. Our amended and restated certificate of incorporation and amended and restated bylaws will provide that we will indemnify any Indemnitee who was or is a party to an action or suit by or in the right of us to procure a judgment in our favor by reason of the fact that the Indemnitee is or was, or has agreed to become, a director or officer, or is or was serving, or has agreed to serve, at our request as a director, officer, partner, employee or trustee of, or in a similar capacity with, another corporation, partnership, joint venture, trust or other enterprise, or by reason of any action alleged to have been taken or omitted in such capacity, against all expenses (including attorneys’ fees) and, to the extent permitted by law, amounts paid in settlement actually and reasonably incurred in connection with such action, suit or proceeding, and any appeal therefrom, if the Indemnitee acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to, our best interests, except that no indemnification shall be made with respect to any claim, issue or matter as to which such person shall have been adjudged to be liable to us, unless a court determines that, despite such adjudication but in view of all of the circumstances, he or she is entitled to indemnification of such expenses. Notwithstanding the foregoing, to the extent that any Indemnitee has been successful, on the merits or otherwise, he or she will be indemnified by us against all expenses (including attorneys’ fees) actually and reasonably incurred in connection therewith. Expenses must be advanced to an Indemnitee under certain circumstances.

We have entered into separate indemnification agreements with each of our directors and executive officers. Each indemnification agreement provides, among other things, for indemnification to the fullest extent permitted by law against any and all expenses, judgments, fines, penalties and amounts paid in settlement of any claim. The indemnification agreements provides for the advancement or payment of all expenses to the indemnitee and for the reimbursement to us if it is found that such indemnitee is not entitled to such indemnification under applicable law and our amended and restated certificate of incorporation and amended and restated bylaws.

We maintain a general liability insurance policy that covers certain liabilities of directors and officers of our corporation arising out of claims based on acts or omissions in their capacities as directors or officers.

Item 16. Exhibits.

* Filed herewith

** To be filed by amendment or incorporated by reference in connection with the offering of securities.

Item 17. Undertakings.

The undersigned registrant hereby undertakes:

provided, however, that paragraphs (i), (ii), and (iii) above do not apply if the information required to be included in the post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized in the City of Houston, State of Texas, on February 4, 2026.

POWER OF ATTORNEY

Each person whose signature appears below appoints Joseph R. Edwards and Jonathan W. Byers, and each of them, any of whom may act without the joinder of the other, as his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement, and any additional registration statement (including any amendment thereto) for this offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act, and to file the same, with all exhibits thereto, and all other documents in connection therewith, with the Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or would do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them or their or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed by the following persons in the capacities indicated on February 4, 2026.