TOM OCONNOR (5425 SAND)
Field #90534650 · District 2 · --
Leases
25
Operators
9
Cum Oil
127k BBL
Cum Gas
2.6M MCF
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. | 11 | 67k | 2011-02 |
| HILCORP ENERGY COMPANY | 8 | 8k | 2025-04 |
| T - C OIL COMPANY | 3 | 28k | 1998-05 |
| COPANO COMPANY | 1 | 4k | 1995-07 |
| PENNZOIL EXPLORATION & PROD. CO. | 1 | 18k | 1998-07 |
| T-C OIL COMPANY, LLC | 1 | 3k | 2015-05 |
Lease Types
Leases (25)
| TYPE | LEASE | OPERATOR | OIL (BBL) | GAS (MCF) | FIRST | LAST |
|---|---|---|---|---|---|---|
| Oil | WILLIAMS, MAUDE ET AL "B" | QUINTANA PET. CORP. | 34k | 101k | 1996-05 | 2011-02 |
| Oil | O'CONNER, THOMAS -A- | QUINTANA PET. CORP. | 27k | 188k | 1993-01 | 2005-02 |
| Oil | NORDAN, MORRIS - OCONNOR, THOS. | T - C OIL COMPANY | 24k | 37k | 1993-01 | 1998-05 |
| Oil | LAMBERT, M. F. | PENNZOIL EXPLORATION & PROD. CO. | 18k | 58k | 1993-01 | 1998-07 |
| Oil | LAMBERT, M F. | HILCORP ENERGY COMPANY | 7k | 457 | 2018-09 | 2025-04 |
| Oil | BAUER, MARY CLAIRE ET VIR | QUINTANA PET. CORP. | 5k | 16k | 1996-11 | 2000-04 |
| Oil | O'CONNOR, THOS. "B" | COPANO COMPANY | 4k | 24k | 1993-01 | 1995-07 |
| Oil | OCONNOR, THOS., -E- | T - C OIL COMPANY | 4k | 18k | 1993-01 | 1998-03 |
| Oil | L.A. NORDAN-THOS. O'CONNOR EST | T-C OIL COMPANY, LLC | 3k | 450 | 2014-09 | 2015-05 |
| Oil | BAUER, MARY CLAIRE ET VIR | QUINTANA PET. CORP. | 2k | 80k | 1993-01 | 1994-02 |
| Oil | HEARD, CLAUDE E. ET AL | HILCORP ENERGY COMPANY | 355 | 528 | 2007-04 | 2007-12 |
| Oil | WILLIAMS, MAUDE ET AL -A- | HILCORP ENERGY COMPANY | 143 | 3k | 2007-10 | 2008-07 |
| Gas | L.A. NORDAN-THOS. O'CONNOR EST | T-C OIL COMPANY, LLC | 0 | 0 | 2011-06 | -- |
| Gas | HEARD, MRS. FANNIE V.W. | QUINTANA PET. CORP. | 0 | 485k | 1993-01 | 1999-11 |
| Gas | LAMBERT, MARY F. "EA" | HILCORP ENERGY COMPANY | 0 | 179k | 2006-08 | 2007-11 |
| Gas | HEARD, MRS. FANNIE V. W. | QUINTANA PET. CORP. | 0 | 105k | 1995-05 | 1998-02 |
| Gas | MRS. FANNIE V. W. HEARD | HILCORP ENERGY COMPANY | 0 | 30k | 2008-05 | 2010-04 |
| Gas | WILLIAMS, MAUDE ET AL "A" | QUINTANA PET. CORP. | 0 | 1.0M | 1993-01 | 2010-09 |
| Oil | MAUDE WILLIAMS ET AL -C- | HILCORP ENERGY COMPANY | 0 | 0 | 2008-04 | -- |
| Gas | REILLY, ANNIE | QUINTANA PET. CORP. | 0 | 552k | 1993-01 | 2005-07 |
| Gas | HEARD, CLEMENT | HILCORP ENERGY COMPANY | 0 | 27k | 2007-03 | 2009-05 |
| Gas | O'CONNOR, THOMAS -A- | QUINTANA PET. CORP. | 0 | 123k | 1993-01 | 1999-09 |
| Gas | BAUER, MARY CLAIRE ET VIR | QUINTANA PET. CORP. | 0 | 24k | 1994-03 | 1994-11 |
| Gas | O'CONNOR, THOMAS "C" | HILCORP ENERGY COMPANY | 0 | 32k | 2004-09 | 2006-05 |
| Oil | HEARD, MRS. FANNIE V.W. | QUINTANA PET. CORP. | 0 | 0 | 1993-10 | -- |