TOM OCONNOR
Field #90534001 · District 2 · --
Leases
64
Operators
14
Cum Oil
2.3M BBL
Cum Gas
3.0M MCF
Cum Cond
13k 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 |
|---|---|---|---|
| QUINTANA PET. CORP. | 26 | 1.4M | 2026-04 |
| HILCORP ENERGY COMPANY | 24 | 36k | 2025-10 |
| T-C OIL COMPANY, LLC | 6 | 216k | 2010-12 |
| PENNZOIL EXPLORATION & PROD. CO. | 4 | 315k | 2026-04 |
| KOVAR OPERATING, LLC | 1 | 278k | 2019-05 |
| COPANO COMPANY | 1 | 0 | -- |
| H & D OPERATING COMPANY | 1 | 0 | 2004-10 |
| PALOMA OPERATING, LLC | 1 | 0 | -- |
Lease Types
Leases (64)
| TYPE | LEASE | OPERATOR | OIL (BBL) | GAS (MCF) | FIRST | LAST |
|---|---|---|---|---|---|---|
| Oil | OCONNOR, THOMAS -A- | QUINTANA PET. CORP. | 650k | 756k | 1993-01 | 2026-04 |
| Oil | LAMBERT, M. F. | PENNZOIL EXPLORATION & PROD. CO. | 315k | 830k | 1993-01 | 2026-04 |
| Oil | LAMBERT, M. F. | KOVAR OPERATING, LLC | 278k | 330k | 1993-01 | 2019-05 |
| Oil | HEARD, CLAUDE E., ET AL | QUINTANA PET. CORP. | 163k | 369k | 1993-01 | 2023-01 |
| Oil | WILLIAMS, MAUDE, ETAL -A- | QUINTANA PET. CORP. | 160k | 372k | 1993-01 | 2016-10 |
| Oil | OCONNOR, THOS. -D- | QUINTANA PET. CORP. | 120k | 75k | 1993-01 | 2015-12 |
| Oil | OCONNOR, THOMAS -E- | T-C OIL COMPANY, LLC | 116k | 317k | 1993-01 | 2010-11 |
| Oil | WILLIAMS, MAUDE ET AL -C- | QUINTANA PET. CORP. | 68k | 71k | 1993-01 | 2005-10 |
| Oil | WILLIAMS, MAUDE, ETAL -B- | QUINTANA PET. CORP. | 68k | 115k | 1993-01 | 2024-02 |
| Oil | OCONNOR, THOMAS -C- | QUINTANA PET. CORP. | 62k | 89k | 1993-01 | 2009-10 |
| Oil | HEARD, FANNIE V. W., MRS. | QUINTANA PET. CORP. | 60k | 120k | 1993-01 | 2021-01 |
| Oil | OCONNOR, THOMAS -D- | T-C OIL COMPANY, LLC | 54k | 552k | 1993-01 | 2005-12 |
| Oil | O'CONNOR, THOMAS 'B' | QUINTANA PET. CORP. | 42k | 23k | 1998-06 | 2011-04 |
| Oil | OCONNOR, THOMAS -B- | T-C OIL COMPANY, LLC | 39k | 68k | 1993-01 | 2010-12 |
| Oil | WILSON HEARD 'B' | HILCORP ENERGY COMPANY | 21k | 8k | 2012-03 | 2025-10 |
| Oil | HEARD, WILSON "B" | HILCORP ENERGY COMPANY | 13k | 62k | 2001-06 | 2002-10 |
| Oil | HEARD, CLEMENT | QUINTANA PET. CORP. | 7k | 64k | 1993-01 | 2001-04 |
| Oil | HEARD, WILSON "A" | QUINTANA PET. CORP. | 5k | 26k | 1996-06 | 2002-04 |
| Oil | HEARD, IRA 'A' | QUINTANA PET. CORP. | 5k | 133k | 1998-06 | 2002-08 |
| Oil | NORDAN, L. A.-OCONNOR, THOS. EST | T-C OIL COMPANY, LLC | 4k | 502 | 1993-01 | 1998-06 |
| Oil | NORDAN & MORRIS-THOS. O'CONNOR | T - C OIL COMPANY | 2k | 2k | 1993-01 | 1998-06 |
| Oil | HEARD, CLEMENT | HILCORP ENERGY COMPANY | 1k | 4k | 2007-05 | 2007-11 |
| Oil | HEARD, IRA "B" | HILCORP ENERGY COMPANY | 775 | 83k | 2006-04 | 2008-07 |
| Oil | BAUER, MARY CLAIRE ET VIR | HILCORP ENERGY COMPANY | 589 | 12k | 2002-12 | 2003-05 |
| Oil | O'CONNER, THOMAS -A- | T-C OIL COMPANY, LLC | 0 | 0 | 1993-01 | -- |
| Gas | O'CONNOR, THOMAS "A" | HILCORP ENERGY COMPANY | 0 | 2k | 2002-05 | 2003-05 |
| Gas | HEARD, WILSON "B" | HILCORP ENERGY COMPANY | 0 | 56k | 2002-10 | 2004-03 |
| Gas | HEARD, CLAUDE E. ET AL | HILCORP ENERGY COMPANY | 0 | 7k | 2007-06 | 2009-05 |
| Gas | WILLIAMS, MAUDE ET AL "A" | QUINTANA PET. CORP. | 0 | 47k | 1995-05 | 1998-01 |
| Gas | LAMBERT, M. F. | HILCORP ENERGY COMPANY | 0 | 19k | 2007-09 | 2008-09 |
| Gas | O'CONNOR, THOMAS "A" | QUINTANA PET. CORP. | 0 | 2k | 1995-10 | 1996-12 |
| Gas | HEARD, FANNIE V.W. MRS. | QUINTANA PET. CORP. | 0 | 199k | 1994-09 | 2000-11 |
| Gas | HEARD, FANNIE V. W. MRS. | QUINTANA PET. CORP. | 0 | 347k | 1993-01 | 1997-01 |
| Oil | WILLIAMS, MAUDE ET AL 'C' | QUINTANA PET. CORP. | 0 | 0 | 1999-01 | -- |
| Gas | HEARD, FANNIE V. W., MRS. | QUINTANA PET. CORP. | 0 | 23k | 1998-03 | 1998-08 |
| Oil | TOM O'CONNOR(5600 FOOT SAND)UNIT | HILCORP ENERGY COMPANY | 0 | 0 | 2005-03 | -- |
| Gas | LAMBERT, M. F. | PENNZOIL EXPLORATION & PROD. CO. | 0 | 185k | 1993-01 | 1994-12 |
| Oil | WILLIAMS, MAUDE ET AL "A" | QUINTANA PET. CORP. | 0 | 0 | 1995-06 | -- |
| Oil | REILLY, ANNIE, ETVIR | QUINTANA PET. CORP. | 0 | 0 | 1993-01 | -- |
| Gas | MAUDE WILLIAMS ET AL 'A' | HILCORP ENERGY COMPANY | 0 | 5k | 2016-04 | 2016-08 |
| Gas | O'CONNOR, THOMAS "A" | QUINTANA PET. CORP. | 0 | 29k | 1993-11 | 1999-02 |
| Oil | TOM O'CONNOR(5800 SD) FIELD UNIT | QUINTANA PET. CORP. | 0 | 0 | 1993-01 | -- |
| Gas | O'CONNOR, THOMAS 'C' | QUINTANA PET. CORP. | 0 | 24k | 1998-07 | 2002-02 |
| Oil | HEARD, MRS. FANNIE V. W. | HILCORP ENERGY COMPANY | 0 | 0 | 2006-09 | -- |
| Oil | O'CONNOR, THOMAS "B" | COPANO COMPANY | 0 | 0 | 1998-03 | -- |
| Gas | HEARD, CLEMENT | HILCORP ENERGY COMPANY | 0 | 0 | 2010-03 | -- |
| Gas | LAMBERT, M. F. | HILCORP ENERGY COMPANY | 0 | 67k | 2000-12 | 2003-03 |
| Gas | HEARD, IRA 'A' | HILCORP ENERGY COMPANY | 0 | 1k | 2013-10 | 2014-01 |
| Gas | O'CONNOR, THOMAS "C" | HILCORP ENERGY COMPANY | 0 | 233k | 2003-12 | 2008-09 |
| Gas | ANNIE REILLY | HILCORP ENERGY COMPANY | 0 | 25k | 2010-12 | 2011-12 |
| Gas | O'CONNOR, THOMAS "C" | HILCORP ENERGY COMPANY | 0 | 74 | 2008-06 | 2008-06 |
| Gas | OCONNOR, THOMAS -C- | QUINTANA PET. CORP. | 0 | 0 | 1993-01 | -- |
| Gas | M. F. LAMBERT | HILCORP ENERGY COMPANY | 0 | 0 | 2008-10 | -- |
| Gas | LAMBERT, M. F. | PENNZOIL EXPLORATION & PROD. CO. | 0 | 577k | 1993-01 | 2010-05 |
| Gas | HEARD, CLEMENT | HILCORP ENERGY COMPANY | 0 | 940 | 2012-06 | 2012-08 |
| Oil | MAUDE WILLIAMS ET AL "A" | QUINTANA PET. CORP. | 0 | 0 | 1996-01 | -- |
| Gas | LAMBERT, M.F. | H & D OPERATING COMPANY | 0 | 1.1M | 1993-01 | 2004-10 |
| Gas | WILLIAMS, MAUDE ET AL "A" | QUINTANA PET. CORP. | 0 | 2k | 1995-04 | 1995-04 |
| Gas | O'CONNOR, THOMAS "C" | HILCORP ENERGY COMPANY | 0 | 17k | 2005-02 | 2008-09 |
| Gas | HEARD, MRS. FANNIE V. W. | HILCORP ENERGY COMPANY | 0 | 13k | 2006-05 | 2006-08 |
| Gas | BAUER, MARY CLAIRE ET VIR | HILCORP ENERGY COMPANY | 0 | 11k | 2007-03 | 2007-05 |
| Gas | LAMBERT, M. F. | PENNZOIL EXPLORATION & PROD. CO. | 0 | 0 | 1998-06 | -- |
| Gas | O'CONNOR, THOMAS "C" | HILCORP ENERGY COMPANY | 0 | 3k | 2007-08 | 2009-12 |
| Oil | SCANIO, M | PALOMA OPERATING, LLC | 0 | 0 | 2011-03 | -- |