Oil and gas leases in District 04

Railroad Commission district 04 covers 26 Texas counties and 31,387 leases with reported production. 3,464 of them are oil leases and 27,923 are gas leases. Between them they carry 37,861 wellbores. Reported volumes run from January 1993 to August 2026 and come to 140.8 million barrels of oil and 32.5 billion Mcf of gas. 1,347 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 District 04

How many oil and gas leases are in District 04?: District 04 has 31,387 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has District 04 produced?: Leases in District 04 have reported 140,766,198 barrels of oil (bbl) and 32,505,269,454 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
Who are the biggest operators in District 04?: Conoco Inc. operates 1,338 of the 31,387 producing leases in District 04, more than any other operator on record with the Railroad Commission of Texas.
How many operators are active in District 04?: 1,347 operators file production returns for leases in District 04.
How much are mineral rights in District 04 worth?: There is no single figure: what a mineral or royalty interest in District 04 is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 31,387 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.

Operators here

The company that runs the wells and issues the royalty cheque.

Conoco Inc. — 1,338 leases
Exxon Corp. — 1,291 leases
Eog Resources, Inc. — 1,041 leases
Lewis Petro Properties, Inc. — 962 leases
Transamerican Natural Gas Corp. — 904 leases
Enron Oil & Gas Company — 789 leases
Union Pacific Resources Company — 552 leases
Conocophillips Company — 535 leases
Coastal Oil & Gas Corporation — 533 leases
Chevron U. S. A. Inc. — 520 leases
Oryx Energy Company — 496 leases
Houston Exploration Company, The — 489 leases
Shell Western E&P Inc. — 480 leases
Killam Oil Co., Ltd. — 478 leases
Mobil Producing TX. & N.M. Inc. — 476 leases
Rosetta Resources Operating LP — 425 leases
Fina Oil & Chemical Company — 417 leases
Transtexas Gas Corporation — 391 leases
Shell Western E&P — 373 leases
Pennzoil Exploration & Prod. Co. — 368 leases
Texaco E & P Inc. — 359 leases
Chesapeake Operating, Inc. — 302 leases
El Paso Production Oil & Gas Co. — 300 leases
Exxon Mobil Corporation — 269 leases
Smith Production Inc. — 226 leases
Legend Natural Gas III, LP — 219 leases
North Central Oil Corp. — 218 leases
Devon Energy Production Co, L.P. — 214 leases
Apache Corporation — 199 leases
Kerr-Mcgee Oil & Gas Onshore LLC — 192 leases
Forest Oil Corporation — 178 leases
Kerr-Mcgee Oil & Gas Onshore LP — 172 leases
Kerns O & G, Inc. — 170 leases
Columbus Energy Corp. — 162 leases
Hilcorp Energy Company — 162 leases
Dewbre Petroleum Corporation — 153 leases
Newfield Exploration Company — 151 leases
Oxy USA Inc. — 149 leases
Arco Oil & Gas Co. — 147 leases
Texas Independent Explor., Inc. — 145 leases
Hughes, Dan A. Company — 141 leases
Michael Petroleum Corporation — 137 leases
El Paso E & P Company, L. P. — 136 leases
Laredo Energy — 136 leases
Mestena Operating, Ltd. — 120 leases
Virtex Petroleum Company, Inc. — 118 leases
Peoples Energy Prod.-TX, L.P. — 117 leases
Tri-C Resources, Inc. — 115 leases
Huber Energy L.P. — 112 leases
Merit Energy Company — 111 leases
Bridge Oil Production Co., Inc. — 108 leases
Sanchez-O'Brien Oil & Gas Corp. — 108 leases
Cody Energy LLC — 107 leases
Dominion Expl. & Prod., Inc. — 106 leases
Gillring Oil Company — 100 leases
Crimson Energy Company, LC — 99 leases
Killam Oil Company — 97 leases
Edge Petroleum Oper. Co., Inc. — 95 leases
Sonat Exploration Co. - Houston — 95 leases
Maguire Oil Company — 93 leases

Counties here

Webb County — 8,185 leases
Zapata County — 4,566 leases
Hidalgo County — 3,537 leases
Starr County — 3,285 leases
Nueces County — 2,652 leases
Duval County — 2,227 leases
Brooks County — 1,467 leases
San Patricio County — 1,279 leases
Jim Wells County — 1,096 leases
Kleberg County — 947 leases
Kenedy County — 679 leases
Jim Hogg County — 540 leases
Willacy County — 467 leases
Aransas County — 258 leases
Cameron County — 48 leases
Mustang Is-SB County — 33 leases
Mustang Is-LB County — 32 leases
Matgrda Is-SB County — 29 leases
La Salle County — 18 leases
Mcmullen County — 18 leases
Refugio County — 8 leases
Matgrda Is-LB County — 7 leases
N Padre Is-LB County — 6 leases
Calhoun County — 1 lease
Dimmit County — 1 lease
Live Oak County — 1 lease

Leases — page 1 of 157

KLEBERG, R J JR TR STILLMAN — gas, Exxon Corp., Willacy County, 35.7 million reported
URIBE, S. — gas, Chevron U. S. A. Inc., Zapata County, 31.8 million reported
USA — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 31.5 million reported
COATES "B" — gas, Coastal Oil & Gas Corporation, Hidalgo County, 31.2 million reported
ZACHRY, H. B. COMPANY — gas, Shell Western E&P Inc., Zapata County, 30.7 million reported
STATE TRACT 746-L — gas, BHP Petroleum (Americas) Inc., Mustang Is-LB County, 30.3 million reported
KLEBERG, R J JR TR STILLMAN — gas, Exxon Corp., Willacy County, 30.2 million reported
USA — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 29.6 million reported
PALMYRA "B" — gas, Transtexas Gas Corporation, Zapata County, 29.2 million reported
SANTA FE RANCH — gas, El Paso Production Oil & Gas Co., Brooks County, 27.2 million reported
LOPEZ, LAURO MINERAL TRUST — gas, Wagner & Brown, Ltd., Zapata County, 26.9 million reported
MARTINEZ, G. — gas, Chevron U. S. A. Inc., Zapata County, 26.9 million reported
COATES "F" GAS UNIT — gas, Coastal Oil & Gas Corporation, Hidalgo County, 26.3 million reported
USA — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 26.2 million reported
DAVIS, W. J. "A" — gas, Shell Western E&P, Hidalgo County, 26.2 million reported
MCALLEN FIELDWIDE UNIT — gas, Total E&P USA, Inc., Hidalgo County, 25.9 million reported
MUZZA, G. P. — gas, Shell Western E&P, Zapata County, 25.6 million reported
WEATHERBY, L.C. GAS UNIT — gas, Shell Western E&P Inc., Duval County, 25.4 million reported
J.C. MANN GAS UNIT — gas, Shell Western E&P Inc., Hidalgo County, 24.7 million reported
KLEBERG, R. J. JR. TR. STILLMAN — gas, Exxon Corp., Willacy County, 24.5 million reported
LOPEZ MINERAL TRUST — gas, Eog Resources, Inc., Duval County, 24.4 million reported
EL PEYOTE MINERAL TRUST — gas, Energy Development Corp., Zapata County, 23.7 million reported
VIDAURRI-STATE GAS UNIT NO. 2 — gas, Chevron U. S. A. Inc., Zapata County, 23.4 million reported
USA — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 23.2 million reported
MUZZA, G. P. — gas, Shell Western E&P Inc., Zapata County, 23.1 million reported
JERICO, LTD. GAS UNIT — gas, Shell Western E&P Inc., Hidalgo County, 23.0 million reported
GUERRA, A. E. — gas, Chevron U. S. A. Inc., Hidalgo County, 23.0 million reported
USA — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 22.9 million reported
STATE PARK — gas, Coastal Oil & Gas Corporation, Starr County, 22.7 million reported
MUZZA, G. P. — gas, Shell Western E&P Inc., Zapata County, 22.6 million reported
GUERRA, A. E. — gas, Chevron U. S. A. Inc., Hidalgo County, 22.5 million reported
SANTA FE RANCH — gas, El Paso Production Oil & Gas Co., Brooks County, 22.4 million reported
USA — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 22.0 million reported
GUERRA, A. E. — gas, Texaco E & P Inc., Hidalgo County, 21.8 million reported
GUERRA, A. E. — gas, Texaco E & P Inc., Hidalgo County, 21.5 million reported
SANTA FE RANCH — gas, El Paso Production Oil & Gas Co., Brooks County, 21.5 million reported
KLEBERG, R.J.JR.TR.STILLMAN — gas, Exxon Corp., Willacy County, 21.1 million reported
KLEBERG, R J JR TR STILLMAN — gas, Eog Resources, Inc., Kenedy County, 20.7 million reported
HAMMAN RANCH — gas, Coastal Oil & Gas Corporation, Hidalgo County, 20.3 million reported
EXXON-YATES RANCH FEE "D" — gas, Exxon Corp., Duval County, 20.3 million reported
GUERRA, A. E. — gas, Chevron U. S. A. Inc., Hidalgo County, 20.2 million reported
HINOJOSA, G. G. — gas, Shell Western E&P Inc., Zapata County, 19.9 million reported
KLEBERG, R.J., STILLMAN JR.TR. — gas, Exxon Corp., Willacy County, 19.9 million reported
EAST, S.K. MRS. — gas, Headington Energy Partners, LLC, Kenedy County, 19.9 million reported
HAMMAN RANCH — gas, El Paso Production Oil & Gas Co., Hidalgo County, 19.6 million reported
MCALLEN FIELDWIDE UNIT — gas, Fina Oil & Chemical Company, Hidalgo County, 19.6 million reported
KING RANCH BORREGOS — gas, Exxon Corp., Kleberg County, 19.4 million reported
MUZZA, G. P. — gas, Shell Western E&P Inc., Zapata County, 19.4 million reported
PETERS ESTATE GAS UNIT — gas, Amoco Production Company, Duval County, 19.4 million reported
ARCO ETAL HUMBLE FEE GAS UNIT — gas, Arco Oil & Gas Co., Duval County, 19.1 million reported
SANTA FE RANCH — gas, El Paso Production Oil & Gas Co., Brooks County, 18.9 million reported
PALMYRA — gas, Transtexas Gas Corporation, Zapata County, 18.9 million reported
GUERRA, E.E. "A" — gas, Shell Western E&P Inc., Hidalgo County, 18.6 million reported
STATE PARK — gas, Coastal Oil & Gas Corporation, Starr County, 18.3 million reported
ALVAREZ GAS UNIT — gas, Transtexas Gas Corporation, Zapata County, 18.1 million reported
EAST, S.K. — gas, Exxon Corp., Kenedy County, 18.1 million reported
PETERS ESTATE — gas, Amoco Production Company, Duval County, 18.0 million reported
AMARILLA, ROSA — gas, Vastar Resources, Inc., Hidalgo County, 17.6 million reported
KILGORE-WERNECKE GAS UNIT — gas, Shell Western E&P Inc., Duval County, 17.5 million reported
RAMIREZ-USA GU "E" — gas, Coastal Oil & Gas Corporation, Starr County, 17.4 million reported
SANTA FE RANCH — gas, Exxon Mobil Corporation, Brooks County, 17.2 million reported
CAVAZOS — gas, Wagner & Brown, Ltd., Zapata County, 17.0 million reported
HUBBERD - FROST NAT'L. BANK G.U. — gas, Shell Western E&P Inc., Duval County, 16.8 million reported
PEREZ, F. "C" — gas, Burlington Resources Oil&Gas Co., Jim Hogg County, 16.8 million reported
EAST, S.K. MRS. — gas, Headington Oil Company LLC, Kenedy County, 16.7 million reported
KLEBERG, R. J. JR. TR. STILLMAN — gas, Exxon Corp., Willacy County, 16.6 million reported
CAGE RANCH — gas, Coastal Oil & Gas Corporation, Brooks County, 16.4 million reported
GUERRA, A. "B" — gas, Tesoro E&P Company, L.P., Hidalgo County, 16.2 million reported
USA — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 16.0 million reported
USA 1 — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 15.9 million reported
EAST, S.K. — gas, Newfield Exploration Company, Kenedy County, 15.8 million reported
EAST, S. K. MRS. -B- — gas, Exxon Corp., Kenedy County, 15.8 million reported
GUERRA, A. E. — gas, Chevron U. S. A. Inc., Hidalgo County, 15.8 million reported
KILLAM HURD MCLEAN 121 — gas, Killam Oil Co., Ltd., Webb County, 15.7 million reported
CUELLER-STATE — gas, Cox Exploration, Inc., Duval County, 15.6 million reported
KENEDY, JOHN G. JR. "J" — gas, Exxon Mobil Corporation, Kenedy County, 15.3 million reported
KENEDY, JOHN G. JR. "J" — gas, Exxon Corp., Kenedy County, 15.2 million reported
EAST, S.K. MRS. — gas, Headington Energy Partners, LLC, Kenedy County, 15.2 million reported
GUERRA-U.S.A. GAS UNIT "D" — gas, Coastal Oil & Gas Corporation, Starr County, 15.2 million reported
KLEBERG, R J JR TR STILLMAN — gas, Exxon Corp., Willacy County, 15.1 million reported
HAMMAN RANCH — gas, El Paso Production Oil & Gas Co., Hidalgo County, 15.1 million reported
BRUNI MINERAL TRUST — gas, Chevron U. S. A. Inc., Webb County, 15.1 million reported
GUERRA, A.E. — gas, Texaco E & P Inc., Hidalgo County, 15.0 million reported
FLORES, R. — gas, Coastal Oil & Gas Corporation, Hidalgo County, 14.9 million reported
BAFFIN BAY STATE GAS UNIT NO. 3 — gas, Exxon Mobil Corporation, Kenedy County, 14.9 million reported
LOMA VIEJA — gas, Energy Development Corp., Zapata County, 14.8 million reported
EAST, S.K. — gas, Exxon Corp., Kenedy County, 14.8 million reported
GUERRA GAS UNIT "A" — gas, Coastal Oil & Gas Corporation, Starr County, 14.8 million reported
GUERRA, M. — gas, Union Pacific Resources Company, Zapata County, 14.1 million reported
STATE PARK — gas, Coastal Oil & Gas Corporation, Starr County, 14.0 million reported
K.H.B. "70" — gas, Hughes, Dan A. Company, Webb County, 14.0 million reported
WEATHERBY-WEATHERBY GAS UNIT — gas, Shell Western E&P Inc., Duval County, 13.9 million reported
HOPKINS, M. A. GAS UNIT — gas, Shell Western E&P Inc., Hidalgo County, 13.9 million reported
SANTA FE RANCH — gas, Exxon Mobil Corporation, Brooks County, 13.9 million reported
USA — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 13.7 million reported
G. E. NEBLETT ET AL GAS UNIT — gas, Shell Western E&P Inc., Starr County, 13.5 million reported
ELLEN C. — gas, Laredo Energy Operating, LLC, Webb County, 13.5 million reported
SANTA FE RANCH MULA PASTURE — gas, Hughes, Dan A. Company, L.P., Kenedy County, 13.4 million reported
EAST, S.K. MRS. — gas, Headington Oil Company LLC, Kenedy County, 13.4 million reported
KENEDY, JOHN G. JR. "J" — gas, Exxon Mobil Corporation, Kenedy County, 13.4 million reported
MUSTANG ISLAND BLOCK 883-S — gas, Llog Exploration Offshore, Inc., Mustang Is-SB County, 13.4 million reported
KENEDY, JOHN G. JR. "J" — gas, Exxon Mobil Corporation, Kenedy County, 13.4 million reported
GARCIA SALINAS PEDERNAL LTD. — gas, Wagner & Brown, Ltd., Zapata County, 13.4 million reported
EAST, S.K. MRS. — gas, Headington Energy Partners, LLC, Kenedy County, 13.3 million reported
RAMIREZ-USA GU "E" — gas, Coastal Oil & Gas Corporation, Starr County, 13.3 million reported
BENTSEN BROS. - STATE — gas, Shell Western E&P Inc., Starr County, 13.3 million reported
NUECES BAY STATE TRACT 688 — gas, Eog Resources, Inc., San Patricio County, 13.2 million reported
SANTA FE RANCH — gas, Exxon Mobil Corporation, Brooks County, 13.2 million reported
LA PERLA — gas, Conoco Inc., Zapata County, 13.1 million reported
DIXIE MORTGAGE-HOPKINS GAS UNIT — gas, Shell Western E&P Inc., Hidalgo County, 13.1 million reported
PEREZ, F "C" — gas, Burlington Resources O & G Co LP, Jim Hogg County, 13.1 million reported
STIRRUP / STATE UNIT — gas, Spinnaker Exploration Co.,L.L.C., Mustang Is-LB County, 13.0 million reported
EAST, S.K. MRS. — gas, Headington Energy Partners, LLC, Kenedy County, 12.8 million reported
CONOCO FEE S/T — gas, Newfield Exploration Company, Duval County, 12.8 million reported
KLEBERG, R.J. JR. TR. STILLMAN — gas, Exxon Corp., Willacy County, 12.7 million reported
BENTSEN BROS. - STATE — gas, Shell Western E&P Inc., Starr County, 12.7 million reported
BOREN GU — gas, Coastal Oil & Gas Corporation, Hidalgo County, 12.7 million reported
PETRU, V. A. — gas, Dominion Expl. & Prod., Inc., Willacy County, 12.7 million reported
STATE TRACT 898-S — gas, Royal Production Company, Inc., Mustang Is-SB County, 12.7 million reported
GARCIA, I. Y. — gas, Oryx Energy Company, Starr County, 12.6 million reported
JOHNSON, F.I. — gas, Newfield Exploration Company, Hidalgo County, 12.6 million reported
LA PERLA — gas, Transtexas Gas Corporation, Zapata County, 12.6 million reported
SANTA FE RANCH — gas, El Paso Production Oil & Gas Co., Brooks County, 12.6 million reported
MCALLEN, A. A. — gas, Shell Western E&P Inc., Hidalgo County, 12.6 million reported
SANTA FE RANCH — gas, El Paso Production Oil & Gas Co., Brooks County, 12.5 million reported
HAMMAN, JOHN "B" — gas, Mobil Producing TX. & N.M. Inc., Hidalgo County, 12.4 million reported
GUERRA, A. E. — gas, Texaco E & P Inc., Hidalgo County, 12.4 million reported
BRIONES, J.E. "A" — gas, Columbus Energy Corp., Zapata County, 12.3 million reported
EAST, S.K. — gas, Headington Oil Company, L.P., Kenedy County, 12.3 million reported
GUERRA GAS UNIT "A" — gas, Coastal Oil & Gas Corporation, Starr County, 12.3 million reported
USA — gas, Coastal Oil & Gas Corporation, Starr County, 12.3 million reported
DAVIS, W. J. "A" — gas, Shell Western E&P, Hidalgo County, 12.3 million reported
GUERRA "C" — gas, Eex E&P Company, L.P., Hidalgo County, 12.2 million reported
VELA — gas, Union Pacific Resources Company, Zapata County, 12.2 million reported
USA — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 12.2 million reported
SUSSER — gas, Southwestern Energy Prod. Co., Nueces County, 12.2 million reported
USA — gas, Sanchez-O'Brien Oil & Gas Corp., Starr County, 12.1 million reported
HAMMAN RANCH — gas, Coastal Oil & Gas Corporation, Hidalgo County, 12.1 million reported
EDINBURG UNIT — gas, Royal Production Company, Inc., Hidalgo County, 12.1 million reported
NEW ZAPATA EAST G.U. — gas, Chesapeake Operating, Inc., Zapata County, 12.1 million reported
MARRS MCLEAN TRUST — gas, Vastar Resources, Inc., Jim Hogg County, 12.0 million reported
EAST, MRS. S. K. "B" — gas, Exxon Corp., Kenedy County, 12.0 million reported
COATES "E" GAS UNIT — gas, Coastal Oil & Gas Corporation, Hidalgo County, 12.0 million reported
HINNANT HEIRS — gas, Killam Oil Co., Ltd., Zapata County, 12.0 million reported
GUERRA-U.S.A. GAS UNIT "D" — gas, Coastal Oil & Gas Corporation, Starr County, 12.0 million reported
LOPEZ, RUFINO & JOSEFA G.U. 4 — gas, Hughes, Dan A. Company, Jim Hogg County, 11.9 million reported
LOPEZ, GLORIA GARCIA — gas, Nuevo Energy Company, Brooks County, 11.9 million reported
KLEBERG, R. J. JR. TR. STILLMAN — gas, Exxon Corp., Willacy County, 11.9 million reported
AI SAN ROMAN — gas, Ageron Energy, LLC, Webb County, 11.9 million reported
J.C. MANN GAS UNIT — gas, Shell Western E&P Inc., Hidalgo County, 11.9 million reported
LA PERLA — gas, Transamerican Natural Gas Corp., Zapata County, 11.8 million reported
SALINAS, M. — gas, Coastal Oil & Gas Corporation, Hidalgo County, 11.8 million reported
TREVINO,A. — gas, Shell Western E&P, Zapata County, 11.8 million reported
DAVIS, W. J. "A" — gas, Shell Western E&P Inc., Hidalgo County, 11.8 million reported
JOHNSON, F.I. — gas, Newfield Exploration Company, Hidalgo County, 11.8 million reported
CHAPMAN RANCH C — gas, Apache Corporation, Nueces County, 11.8 million reported
CUELLAR, MARIA — gas, Transamerican Natural Gas Corp., Zapata County, 11.7 million reported
HOPKINS, M. A. GAS UNIT — gas, Shell Western E&P Inc., Hidalgo County, 11.7 million reported
LOPEZ, LAURO MINERAL TRUST — gas, Wagner & Brown, Ltd., Zapata County, 11.7 million reported
BELL VALLEY — gas, Eog Resources, Inc., San Patricio County, 11.7 million reported
EAST, S.K. MRS. -B- — gas, Exxon Corp., Kenedy County, 11.7 million reported
EAST, S.K. — gas, Headington Oil Company, Kenedy County, 11.6 million reported
RAMIREZ, L. O. A — gas, Conoco Inc., Zapata County, 11.6 million reported
GUERRA, A. E. — gas, Chevron U. S. A. Inc., Hidalgo County, 11.6 million reported
PHARR FIELDWIDE UNIT — gas, Totalfinaelf E&P USA Inc, Hidalgo County, 11.6 million reported
PALMYRA — gas, Transtexas Gas Corporation, Zapata County, 11.6 million reported
EAST, S.K. MRS. — gas, Headington Energy Partners, LLC, Kenedy County, 11.6 million reported
BAFFIN BAY STATE GAS UNIT NO. 3 — gas, Exxon Mobil Corporation, Kenedy County, 11.6 million reported
RIO BRAVO STATE — gas, Silverbow Resources Oper, LLC, Webb County, 11.5 million reported
WHEELOCK GAS UNIT O/A — gas, Texaco E & P Inc., Hidalgo County, 11.4 million reported
PETERS ESTATE GAS UNIT "B" — gas, Amoco Production Company, Duval County, 11.4 million reported
ST. CHARLES CO. — gas, Hilcorp Energy Company, Aransas County, 11.4 million reported
COATES "C" — gas, Coastal Oil & Gas Corporation, Hidalgo County, 11.4 million reported
VILLARREAL — gas, Conocophillips Company, Zapata County, 11.4 million reported
BFMT EAST — gas, Eog Resources, Inc., Webb County, 11.3 million reported
LEYENDECKER, G. L. — gas, Shell Western E&P Inc., Zapata County, 11.3 million reported
SEELIGSON ZONE 21-B UNIT — gas, Exxon Corp., Kleberg County, 11.3 million reported
COATES "F" GAS UNIT — gas, Coastal Oil & Gas Corporation, Hidalgo County, 11.3 million reported
KMF — gas, Headington Energy Partners, LLC, Kenedy County, 11.3 million reported
KING RANCH BORREGOS — gas, Exxon Mobil Corporation, Kleberg County, 11.2 million reported
MUZZA, G. P. — gas, Comstock Oil & Gas, LP, Zapata County, 11.2 million reported
MCALLEN, A. A. — gas, Shell Western E&P Inc., Hidalgo County, 11.1 million reported
YTURRIA, L&C -B- — gas, Oryx Energy Company, Hidalgo County, 11.1 million reported
FLORES, R. — gas, Coastal Oil & Gas Corporation, Hidalgo County, 11.1 million reported
HAZLEWOOD GAS UNIT — gas, Arco Oil & Gas Co., Duval County, 11.0 million reported
GUERRA, A. E. — gas, Texaco E & P Inc., Hidalgo County, 11.0 million reported
MUZZA, G. P. — gas, Shell Western E&P Inc., Zapata County, 10.9 million reported
SANTA FE RANCH — gas, El Paso Production Oil & Gas Co., Brooks County, 10.9 million reported
MCALLEN, A. A. — gas, Shell Western E&P Inc., Hidalgo County, 10.9 million reported
FULBRIGHT, J. E. "G" — gas, Hughes, Dan A. Company, L.P., Zapata County, 10.9 million reported
SLICK, T. B. ESTATE — gas, Totalfinaelf E&P USA Inc, Starr County, 10.9 million reported
EXXON-YATES RANCH FEE "D" — gas, Exxon Corp., Duval County, 10.8 million reported
STALKER GAS UNIT — gas, El Paso Production Oil & Gas Co., Hidalgo County, 10.8 million reported
SANTA FE RANCH — gas, Exxon Mobil Corporation, Brooks County, 10.8 million reported
TSL 33100/TR 48/ — gas, Sabco Operating Company, Nueces County, 10.8 million reported
HAMILTON, BUCK — gas, Eog Resources, Inc., Duval County, 10.8 million reported
BFMT EAST PSA — gas, Eog Resources, Inc., Webb County, 10.8 million reported
PINATA A — gas, Eog Resources, Inc., Webb County, 10.7 million reported
MARSHALL, S. G. — gas, Chevron U. S. A. Inc., Zapata County, 10.7 million reported
CORSAIR-ZAMORA A — gas, Lewis Petro Properties, Inc., Webb County, 10.7 million 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.