BIG COWBOY (LOBO)
Field #7800200 · District 4 · --
Leases
156
Operators
39
Cum Oil
0 BBL
Cum Gas
130.6M MCF
Cum Cond
1.1M BBL
Production
1993-01 — 2026-07
Production History Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
RRC production reported through Apr 2026 · recent months incomplete
Type Curve (normalized avg across leases)
Click Load to compute type curve from lease data
Top Operators
| OPERATOR | LEASES | OIL (BBL) | LAST |
|---|---|---|---|
| HILCORP ENERGY COMPANY | 85 | 0 | 2026-04 |
| EOG RESOURCES, INC. | 31 | 0 | 2013-08 |
| CONOCOPHILLIPS COMPANY | 10 | 0 | 2011-03 |
| WHITE OAK OPERATING COMPANY LLC | 7 | 0 | 2026-04 |
| NORTH CENTRAL OIL CORP. | 5 | 0 | 2003-02 |
| WESTPORT OIL AND GAS COMPANY, LP | 5 | 0 | 2023-07 |
| MOBIL PRODUCING TX. & N.M. INC. | 4 | 0 | 1994-05 |
| ROSETTA RESOURCES OPERATING LP | 2 | 0 | 1998-05 |
| POGO PRODUCING COMPANY | 2 | 0 | 2012-08 |
| PROLINE ENERGY RESOURCES INC | 2 | 0 | 2024-12 |
Lease Types
Leases (100)
| TYPE | LEASE | OPERATOR | OIL (BBL) | GAS (MCF) | FIRST | LAST |
|---|---|---|---|---|---|---|
| Gas | HIRSCH ESTATE 1770 B | HILCORP ENERGY COMPANY | 0 | 626k | 1993-01 | 2008-12 |
| Gas | VAQUILLAS RANCH | HILCORP ENERGY COMPANY | 0 | 988k | 2004-07 | 2026-04 |
| Gas | HIRSCH ESTATE 2071 | HILCORP ENERGY COMPANY | 0 | 1.6M | 1993-01 | 2022-12 |
| Gas | HIRSCH ESTATE 858 | HILCORP ENERGY COMPANY | 0 | 329k | 1996-11 | 2016-02 |
| Gas | CULPEPPER, A.B.2068 | HILCORP ENERGY COMPANY | 0 | 324k | 2002-04 | 2026-04 |
| Gas | WEBB COUNTY SCHOOL BOARD | WHITE OAK OPERATING COMPANY LLC | 0 | 1.1M | 2013-02 | 2026-04 |
| Gas | VAQUILLAS RANCH CO. LTD. 1627 | ENRON OIL & GAS COMPANY | 0 | 886 | 1993-01 | 1993-01 |
| Gas | SCHWARZ-STATE B | EOG RESOURCES, INC. | 0 | 1.1M | 1998-05 | 2013-08 |
| Gas | HIRSCH-STATE-NORFLEET GAS UNIT | HILCORP ENERGY COMPANY | 0 | 748k | 1993-01 | 2026-04 |
| Gas | HIRSCH ESTATE 538 | ENRON OIL & GAS COMPANY | 0 | 223k | 1993-01 | 1997-02 |
| Gas | HIRSCH ESTATE A | HILCORP ENERGY COMPANY | 0 | 2.5M | 1993-01 | 2017-11 |
| Gas | HIRSCH ESTATE 857 | ENRON OIL & GAS COMPANY | 0 | 468k | 1993-01 | 1996-05 |
| Gas | HIRSCH ESTATE 2096 | ENRON OIL & GAS COMPANY | 0 | 0 | 1993-01 | -- |
| Gas | EL GATO A | HILCORP ENERGY COMPANY | 0 | 1.1M | 2005-12 | 2023-09 |
| Gas | HIRSCH, I. ESTATE 517 | HILCORP ENERGY COMPANY | 0 | 2.0M | 1993-01 | 2026-04 |
| Gas | HIRSCH ESTATE 1766 | HILCORP ENERGY COMPANY | 0 | 2.0M | 1993-01 | 2026-04 |
| Gas | NORFLEET-LESSOR G. U. | HILCORP ENERGY COMPANY | 0 | 477k | 1993-01 | 2026-04 |
| Gas | WEBB COUNTY SCHOOL BOARD | NORTH CENTRAL OIL CORP. | 0 | 118k | 1994-08 | 1998-04 |
| Gas | HIRSCH ESTATE 517 | ENRON OIL & GAS COMPANY | 0 | 94k | 1993-01 | 1994-06 |
| Gas | LINCOLN RANCH | HILCORP ENERGY COMPANY | 0 | 1.6M | 2003-10 | 2026-04 |
| Gas | LESSOR HOLDING | CONOCOPHILLIPS COMPANY | 0 | 467k | 2002-04 | 2005-09 |
| Gas | HIRSCH ESTATE 2094 | HILCORP ENERGY COMPANY | 0 | 526k | 1993-01 | 2026-04 |
| Gas | LINCOLN, W.P. 1312 | HILCORP ENERGY COMPANY | 0 | 2.6M | 1993-01 | 2026-04 |
| Gas | WEBB COUNTY SCHOOL BOARD | NORTH CENTRAL OIL CORP. | 0 | 244k | 1995-06 | 1998-02 |
| Gas | VAQUILLAS 1629 | WESTPORT OIL AND GAS COMPANY, LP | 0 | 1.4M | 1993-01 | 2023-07 |
| Gas | HIRSCH ESTATE 537 | ENRON OIL & GAS COMPANY | 0 | 101k | 1993-01 | 1996-09 |
| Gas | HIRSCH ESTATE A | HILCORP ENERGY COMPANY | 0 | 648k | 1993-01 | 2018-02 |
| Gas | HILELI GU | ENRON OIL & GAS COMPANY | 0 | 196k | 1993-01 | 1996-02 |
| Gas | HIRSCH ESTATE 858 | ENRON OIL & GAS COMPANY | 0 | 112k | 1993-01 | 2002-06 |
| Gas | BILLINGS HEIRS | CONOCOPHILLIPS COMPANY | 0 | 117k | 2007-05 | 2011-03 |
| Gas | HIRSCH ESTATE 857 | ENRON OIL & GAS COMPANY | 0 | 0 | 1993-01 | -- |
| Gas | HIRSCH ESTATE 2104 B | ENRON OIL & GAS COMPANY | 0 | 33k | 1993-01 | 1997-01 |
| Gas | ROSCHER-HIRSCH GAS UNIT | HILCORP ENERGY COMPANY | 0 | 489k | 1993-01 | 2026-04 |
| Gas | STANFORD, P.H. | ROSETTA RESOURCES OPERATING LP | 0 | 272k | 1993-01 | 1998-05 |
| Gas | HIRSCH ESTATE 538 | ENRON OIL & GAS COMPANY | 0 | 379 | 1993-01 | 1993-02 |
| Gas | HIRSCH ESTATE 2096 | HILCORP ENERGY COMPANY | 0 | 2.6M | 1993-01 | 2026-04 |
| Gas | SOUTH CALLAGHAN RANCH | WHITE OAK OPERATING COMPANY LLC | 0 | 1.3M | 1994-06 | 2026-04 |
| Gas | NORFLEET, A. V. | ENRON OIL & GAS COMPANY | 0 | 1.3M | 1993-01 | 1997-08 |
| Gas | HIRSH ESTATE 538 | HILCORP ENERGY COMPANY | 0 | 171k | 1993-01 | 2026-04 |
| Gas | LINCOLN, W.P. 1312 | HILCORP ENERGY COMPANY | 0 | 3.4M | 1993-01 | 2026-04 |
| Gas | HIRSCH-STATE-NORFLEET GAS UNIT | HILCORP ENERGY COMPANY | 0 | 1.1M | 1993-01 | 2025-06 |
| Gas | STANFORD, P.H | ROSETTA RESOURCES OPERATING LP | 0 | 0 | 1993-01 | -- |
| Gas | HIRSCH ESTATE 54 | CONOCOPHILLIPS COMPANY | 0 | 302k | 1997-12 | 2000-03 |
| Gas | ROSCHER-HIRSCH GAS UNIT | HILCORP ENERGY COMPANY | 0 | 1.3M | 1993-01 | 2026-04 |
| Gas | SOUTH CALLAGHAN RANCH | WHITE OAK OPERATING COMPANY LLC | 0 | 2.0M | 1994-10 | 2026-04 |
| Gas | HIRSCH ESTATE 1772 | HILCORP ENERGY COMPANY | 0 | 1.1M | 1993-01 | 2026-04 |
| Gas | WEBB COUNTY SCHOOL BOARD | NORTH CENTRAL OIL CORP. | 0 | 354k | 1993-01 | 1998-07 |
| Gas | HIRSCH ESTATE 54 | HILCORP ENERGY COMPANY | 0 | 480k | 1998-04 | 2003-12 |
| Gas | CULPEPPER, A. B. 2068 | HILCORP ENERGY COMPANY | 0 | 228k | 2002-07 | 2026-04 |
| Gas | HIRSCH ESTATE 538 | HILCORP ENERGY COMPANY | 0 | 289k | 1993-01 | 2026-04 |
| Gas | HIRSCH ESTATE | CONOCOPHILLIPS COMPANY | 0 | 21k | 2007-08 | 2008-01 |
| Gas | CULPEPPER, A.B. 2064 | HILCORP ENERGY COMPANY | 0 | 540k | 2002-12 | 2026-04 |
| Gas | HIRSCH ESTATE "2094" | ENRON OIL & GAS COMPANY | 0 | 0 | 1993-01 | -- |
| Gas | HIRSCH ESTATE A | ENRON OIL & GAS COMPANY | 0 | 0 | 1993-01 | -- |
| Gas | ROSCHER, W.C. 518 | ENRON OIL & GAS COMPANY | 0 | 1.0M | 1993-01 | 1999-11 |
| Gas | HIRSCH ESTATE 1771 | HILCORP ENERGY COMPANY | 0 | 387k | 1993-01 | 2026-04 |
| Gas | HIRSCH ESTATE 537 | HILCORP ENERGY COMPANY | 0 | 809k | 1998-09 | 2026-04 |
| Gas | HIRSCH ESTATE 517 | HILCORP ENERGY COMPANY | 0 | 1.5M | 1993-01 | 2026-04 |
| Gas | HIRSCH ESTATE 858 | HILCORP ENERGY COMPANY | 0 | 469k | 1993-01 | 2026-04 |
| Gas | HIRSCH ESTATE "2095" | HILCORP ENERGY COMPANY | 0 | 1.0M | 1993-01 | 2026-04 |
| Gas | HIRSH ESTATE 2096 | HILCORP ENERGY COMPANY | 0 | 411k | 1993-01 | 2026-04 |
| Gas | HIRSCH ESTATE 2094 | HILCORP ENERGY COMPANY | 0 | 8k | 1993-01 | 1994-01 |
| Gas | ROSCHER, W. C. | ENRON OIL & GAS COMPANY | 0 | 163k | 1993-01 | 2001-12 |
| Gas | HIRSCH ESTATE 1770 | HILCORP ENERGY COMPANY | 0 | 0 | 1993-01 | -- |
| Gas | HIRSCH ESTATE 2096 | HILCORP ENERGY COMPANY | 0 | 341k | 1993-01 | 2026-04 |
| Gas | HIRSCH ESTATE 858 | ENRON OIL & GAS COMPANY | 0 | 1.1M | 1993-01 | 1997-06 |
| Gas | SOUTH CALLAGHAN RANCH | WHITE OAK OPERATING COMPANY LLC | 0 | 1.2M | 1993-01 | 2026-04 |
| Gas | VAQUILLAS RANCH A-3 | CONOCOPHILLIPS COMPANY | 0 | 165k | 1993-01 | 1995-04 |
| Gas | ROSCHER-HIRSCH G. U. | HILCORP ENERGY COMPANY | 0 | 749k | 1993-01 | 2005-02 |
| Gas | HIRSCH ESTATE 2071 | HILCORP ENERGY COMPANY | 0 | 703k | 1993-01 | 2026-04 |
| Gas | VAQUILLAS RANCH-A3 | HILCORP ENERGY COMPANY | 0 | 878k | 1993-01 | 2026-04 |
| Gas | HIRSCH ESTATE 2071 | HILCORP ENERGY COMPANY | 0 | 138k | 1993-01 | 2001-01 |
| Gas | EL GATO | HILCORP ENERGY COMPANY | 0 | 710k | 2004-05 | 2026-04 |
| Gas | HIRSCH ESTATE 1765 B | HILCORP ENERGY COMPANY | 0 | 205k | 1993-01 | 2023-11 |
| Gas | BILLINGS HEIRS | HILCORP ENERGY COMPANY | 0 | 2.1M | 2004-06 | 2026-04 |
| Gas | HIRSCH ESTATE 537 | HILCORP ENERGY COMPANY | 0 | 334k | 1998-05 | 2003-09 |
| Gas | SOUTH CALLAGHAN RANCH | MOBIL PRODUCING TX. & N.M. INC. | 0 | 265k | 1993-01 | 1993-05 |
| Gas | WEBB COUNTY SCHOOL BOARD | NORTH CENTRAL OIL CORP. | 0 | 401k | 1993-01 | 1999-03 |
| Gas | HIRSCH ESTATE 1772 | HILCORP ENERGY COMPANY | 0 | 321k | 2004-02 | 2026-04 |
| Gas | A. V. NORFLEET | HILCORP ENERGY COMPANY | 0 | 897k | 2002-07 | 2026-04 |
| Gas | NORFLEET A.V. | HILCORP ENERGY COMPANY | 0 | 887k | 2002-04 | 2026-04 |
| Gas | VAQUILLAS RANCH A-3 | HILCORP ENERGY COMPANY | 0 | 1.7M | 1993-01 | 2015-12 |
| Gas | HIRSCH ESTATE 1766 | HILCORP ENERGY COMPANY | 0 | 2.0M | 1996-04 | 2026-04 |
| Gas | WEBB COUNTY SCHOOL BOARD | POGO PRODUCING COMPANY | 0 | 996k | 1994-08 | 2012-08 |
| Gas | HIRSH-STATE 2072 | HILCORP ENERGY COMPANY | 0 | 520k | 1993-01 | 2026-04 |
| Gas | HIRSCH ESTATE 2094 | HILCORP ENERGY COMPANY | 0 | 1.3M | 1993-01 | 2026-04 |
| Gas | DIX RANCH A | ENRON OIL & GAS COMPANY | 0 | 258k | 1993-01 | 1998-07 |
| Gas | HIRSCH STATE 2072 | HILCORP ENERGY COMPANY | 0 | 511k | 2001-02 | 2009-12 |
| Gas | BILLINGS HEIRS | CONOCOPHILLIPS COMPANY | 0 | 1.5M | 2004-04 | 2010-12 |
| Gas | WEBB COUNTY SCHOOL BOARD | POGO PRODUCING COMPANY | 0 | 667k | 1993-01 | 2011-02 |
| Gas | HIRSCH ESTATE 1772 | HILCORP ENERGY COMPANY | 0 | 916k | 1993-01 | 2026-04 |
| Gas | DIX RANCH - STATE A | HILCORP ENERGY COMPANY | 0 | 828k | 1993-01 | 2026-04 |
| Gas | SOUTH CALLAGHAN RANCH | MOBIL PRODUCING TX. & N.M. INC. | 0 | 306k | 1993-01 | 1994-05 |
| Gas | HIRSCH ESTATE 2094 | ENRON OIL & GAS COMPANY | 0 | 6k | 1993-01 | 1994-01 |
| Gas | BILLINGS HEIRS | CONOCOPHILLIPS COMPANY | 0 | 73k | 2003-12 | 2010-12 |
| Gas | A.B. CULPEPPER 2064 | HILCORP ENERGY COMPANY | 0 | 3.1M | 2002-04 | 2026-04 |
| Gas | ROSCHER-HIRSCH GAS UNIT | ENRON OIL & GAS COMPANY | 0 | 32k | 1993-01 | 1995-03 |
| Gas | ABE LINCOLN GU "A" | EOG RESOURCES, INC. | 0 | 388k | 1998-11 | 2013-08 |
| Gas | WEBB COUNTY SCHOOL BOARD | NORTH CENTRAL OIL CORP. | 0 | 286k | 1995-05 | 2003-02 |
| Gas | HIRSCH ESTATE 517 | HILCORP ENERGY COMPANY | 0 | 696k | 2001-03 | 2006-02 |