0002035149 exch:XNYS 2026-01-01 2026-03-31 0002035149 2026-01-01 2026-03-31 0002035149 us-gaap:CommonClassBMember 2026-05-01 0002035149 us-gaap:CommonClassAMember 2026-05-01 0002035149 exch:XCHI 2026-01-01 2026-03-31 shares --12-31 0002035149 Q1 NYSETX 10-Q/A true true 2026-03-31 2026 false 001-42477 Flowco Holdings Inc. DE 99-4382473 1300 Post Oak Blvd. Suite 450 Houston TX 77056 713 997-4877 Class A common stock, par value $0.0001 per share FLOC NYSE Class A common stock, par value $0.0001 per share FLOC Yes Yes Non-accelerated Filer false true false false 41824162 48521254 The purpose of this Amendment No. 1 to our Annual Report on Form 10-Q for the three months ended March 31, 2026, originally filed with the Securities and Exchange Commission (the “SEC”) on May 6, 2026 (the “Original Report”), is to correct an inadvertent omission of certain language from paragraph 4 of Exhibit 31.1, Certification of the Principal Executive Officer, and Exhibit 31.2, Certification of the Principal Financial Officer filed with the Original Report. This Amendment No. 1 contains only the Cover Page, this Explanatory Note and Exhibits 31.1 and 31.2. No other changes have been made to the Original Report. This Amendment No. 1 does not reflect subsequent events occurring after the original filing date of the Original Report or modify or update in any way disclosures made in the Original Report. Accordingly, this Amendment No. 1 should be read in conjunction with the Original Report and our other filings with the SEC.