RPC(RES) - 2025 Q4 - Annual Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2025 ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 FOR THE TRANSITION PERIOD FROM ______ TO_______ Commission File No. 1-8726 RPC, INC. (Exact name of registrant as specified in its charter) Delaware (State of Incorporation) 58-1550825 (I.R.S. Empl ...