Oil and gas leases in Grimes County — page 3

Grimes County, Texas has 448 oil and gas leases with production on file at the Railroad Commission. 149 of them are oil leases and 299 are gas leases. Between them they carry 482 wellbores. Reported volumes run from January 1993 to August 2026 and come to 13.3 million barrels of oil and 771.3 million Mcf of gas. 72 operators file returns here. Every lease below has its own page with a decline-curve forecast and an estimate of what the whole lease is worth.

Key facts about Grimes County

How many oil and gas leases are in Grimes County?
Grimes County has 448 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has Grimes County produced?
Leases in Grimes County have reported 13,338,251 barrels of oil (bbl) and 771,329,554 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
How many operators are active in Grimes County?
72 operators file production returns for leases in Grimes County.
How much are mineral rights in Grimes County worth?
There is no single figure: what a mineral or royalty interest in Grimes County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 448 leases listed here has its own page with the full production history the operator reported, a decline-curve forecast, and an estimate of what a royalty interest in it is worth today.

Leases — page 3 of 3

  • NEASON UNIT A-39 — oil, Sonat Exploration Company -Tyler, Grimes County, 7 thousand reported
  • NEASON UNIT A-39 — gas, Galloway Energy Co., Grimes County, 7 thousand reported
  • BRUNNER — gas, Cashco Oil Company, Grimes County, 6 thousand reported
  • HOLTH, A. — gas, Cashco Oil Company, Grimes County, 6 thousand reported
  • ALIANA UNIT — oil, Mego Resources, LLC, Grimes County, 5 thousand reported
  • SELECTED LANDS — oil, Confed Oil Incorporated, Grimes County, 5 thousand reported
  • SONTAG UNIT — oil, Chesapeake Operating, Inc., Grimes County, 5 thousand reported
  • NEBLETT — oil, Houston Operating, Inc., Grimes County, 5 thousand reported
  • PEACH — gas, Magnolia Oil & Gas Operating LLC, Grimes County, 4 thousand reported
  • BELL, HARRY A. -UNIT — oil, Moon Operating, Inc., Grimes County, 4 thousand reported
  • NAVASOTA UNIT — gas, Union Pacific Resources Company, Grimes County, 4 thousand reported
  • ZINGARA — gas, Deep Rock Resources, Inc., Grimes County, 4 thousand reported
  • HARRISON BROKEN ARROW RANCH — gas, Devon Energy Production Co, L.P., Grimes County, 4 thousand reported
  • ROBERT — oil, Chesapeake Operating, Inc., Grimes County, 3 thousand reported
  • FREEMAN UNIT — gas, Cameron, Paul E., JR., Inc., Grimes County, 3 thousand reported
  • HADLEY — oil, Chesapeake Operating, Inc., Grimes County, 3 thousand reported
  • BRADY — oil, Setex Oil And Gas Company, Grimes County, 3 thousand reported
  • SMOOT UNIT — oil, Snyder Oil Corporation, Grimes County, 2 thousand reported
  • NORWOOD — oil, Crimson Exploration Oper., Inc., Grimes County, 2 thousand reported
  • POELLNITZ-POELLNITZ UNIT — oil, Union Pacific Resources Company, Grimes County, 2 thousand reported
  • COMANCHERO — oil, Ponderosa Oil & Gas, LLC, Grimes County, 2 thousand reported
  • SELECTED LANDS UNIT 18 NO.5 — oil, Total Minatome Corporation, Grimes County, 2 thousand reported
  • CONELEY-GALBREATH — gas, Cashco Oil Company, Grimes County, 1 thousand reported
  • WRIGHT UNIT — oil, Patterson Petroleum LP, Grimes County, 1 thousand reported
  • MARSHALL, L. Z. — oil, Marathon Oil Company, Grimes County, 1 thousand reported
  • MCWHORTER, G. S. — oil, Dynamic Petroleum Res., Inc., Grimes County, 1 thousand reported
  • SELECTED LANDS — oil, Dalbosco, Donald C., Grimes County, 1 thousand reported
  • SCAMARDO UNIT — oil, Cashco Oil Company, Grimes County, 847 reported
  • HARRISON-THOMPSON UNIT — oil, Union Pacific Resources Company, Grimes County, 739 reported
  • O.B. BESS UNIT — oil, Cashco Oil Company, Grimes County, 618 reported
  • GRANT, WM. R., ET AL UNIT #1 — oil, Marino, Charles B., Grimes County, 602 reported
  • WILL D. SMITH — oil, Halcon Operating Co., Inc., Grimes County, 418 reported
  • SIX SHOOTER — oil, New Gulf Resources, LLC, Grimes County, 390 reported
  • NORWOOD UNIT — oil, Patterson Petroleum LP, Grimes County, 333 reported
  • GARDNER, WILLIAM — oil, Fuji Resources Production Co,Inc, Grimes County, 306 reported
  • SELECTED LANDS UNIT 18 NO. 5 — oil, Confed Oil Incorporated, Grimes County, 305 reported
  • BRADY — oil, Lometa Petroleum Corporation, Grimes County, 255 reported
  • ZINGARA — oil, Deep Rock Resources, Inc., Grimes County, 195 reported
  • ZINGARA — gas, Deep Rock Resources, Inc., Grimes County, 141 reported
  • TUCKER, T. J. — oil, Galloway Energy Co., Grimes County, 117 reported
  • THOMAS-LANDRY — gas, Apache Corporation, Grimes County, 114 reported
  • UPCHURCH — oil, Chesapeake Operating, Inc., Grimes County, 62 reported
  • HOWARD — oil, Chesapeake Operating, Inc., Grimes County, 27 reported
  • SMITH, FINLEY — gas, Cashco Oil Company, Grimes County, 14 reported
  • MCDOUGALD UNIT "A" — oil, Great Western Onshore Inc., Grimes County, 14 reported
  • COVINGTON — oil, Halcon Operating Co., Inc., Grimes County, 8 reported
  • WILL D. SMITH — oil, Halcon Operating Co., Inc., Grimes County, 4 reported
  • JOHNSON TRUSTS ETAL — oil, Halcon Operating Co., Inc., Grimes County, 2 reported

Production figures are as reported to the Railroad Commission of Texas. Values shown on lease pages are estimates produced by fitting a decline curve to that reported history; they are not offers or appraisals.