TOM OCONNOR (5900 SAND)
Field #90534875 · District 2 · --
Leases
25
Operators
13
Cum Oil
7.8M BBL
Cum Gas
0 MCF
Production
1993-01 — 2026-03
Production History
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 | 7.0M | 2026-03 |
| HILCORP ENERGY COMPANY | 8 | 233k | 2026-03 |
| T-C OIL COMPANY, LLC | 3 | 55k | 2026-03 |
| H & D OPERATING COMPANY | 1 | 18k | 1998-07 |
| COPANO COMPANY | 1 | 4k | 1995-10 |
| PENNZOIL EXPLORATION & PROD. CO. | 1 | 503k | 2026-03 |
Lease Types
Leases (25)
| TYPE | LEASE | OPERATOR | OIL (BBL) | GAS (MCF) | FIRST | LAST |
|---|---|---|---|---|---|---|
| Oil | O'CONNOR, THOMAS -C- | QUINTANA PET. CORP. | 3.0M | 0 | 1993-01 | 2026-03 |
| Oil | HEARD, FANNIE, V. W., MRS. | QUINTANA PET. CORP. | 1.6M | 0 | 1993-01 | 2026-03 |
| Oil | HEARD, CLEMENT | QUINTANA PET. CORP. | 1.2M | 0 | 1993-01 | 2026-03 |
| Oil | REILLY, ANNIE, ET VIR | QUINTANA PET. CORP. | 504k | 0 | 1993-01 | 2026-03 |
| Oil | LAMBERT, M. F. | PENNZOIL EXPLORATION & PROD. CO. | 503k | 0 | 1993-01 | 2026-03 |
| Oil | WILLIAMS, MAUDE, ET AL -A- | QUINTANA PET. CORP. | 441k | 0 | 1993-01 | 2026-03 |
| Oil | BAUER, MARY CLAIRE ET VIR | HILCORP ENERGY COMPANY | 152k | 0 | 2003-07 | 2026-03 |
| Oil | OCONNOR, THOMAS, -A- | QUINTANA PET. CORP. | 107k | 0 | 1993-01 | 2026-03 |
| Oil | LAMBERT, M. F. | HILCORP ENERGY COMPANY | 68k | 0 | 2001-06 | 2011-12 |
| Oil | WILLIAMS, MAUDE ET AL "B" | QUINTANA PET. CORP. | 41k | 0 | 1993-01 | 2018-12 |
| Oil | NORDAN,L. A.-OCONNOR,THOMAS,EST. | T-C OIL COMPANY, LLC | 40k | 0 | 1993-01 | 2016-09 |
| Oil | BAUER, MARY CLAIRE, ET VIR | QUINTANA PET. CORP. | 38k | 0 | 1993-01 | 2003-07 |
| Oil | LAMBERT, M. F. | H & D OPERATING COMPANY | 18k | 0 | 1993-01 | 1998-07 |
| Oil | HEARD, CLAUD E., ET AL | QUINTANA PET. CORP. | 17k | 0 | 1993-01 | 2015-06 |
| Oil | OCONNOR, THOMAS, -A- | T-C OIL COMPANY, LLC | 13k | 0 | 1993-01 | 2026-03 |
| Oil | HEARD, IRA "B" | HILCORP ENERGY COMPANY | 12k | 0 | 2003-05 | 2008-10 |
| Oil | HEARD, IRA -A- | QUINTANA PET. CORP. | 8k | 0 | 1993-01 | 1998-08 |
| Oil | OCONNOR, THOMAS, -B- | COPANO COMPANY | 4k | 0 | 1993-01 | 1995-10 |
| Oil | NORDAN & MORRIS, OCONNOR, THOMAS | T-C OIL COMPANY, LLC | 3k | 0 | 1993-01 | 2026-03 |
| Oil | IRA HEARD "A" | HILCORP ENERGY COMPANY | 1k | 0 | 2011-05 | 2012-12 |
| Oil | CLAUDE E. HEARD, ET AL | HILCORP ENERGY COMPANY | 317 | 0 | 2018-01 | 2018-11 |
| Oil | IRA HEARD 'A' | HILCORP ENERGY COMPANY | 19 | 0 | 2007-03 | 2009-07 |
| Oil | HEARD, IRA 5900 SAND UNIT | QUINTANA PET. CORP. | 0 | 0 | 1993-01 | 1996-09 |
| Oil | LAMBERT, MARY F., -A- | HILCORP ENERGY COMPANY | 0 | 0 | 1993-01 | 2026-03 |
| Oil | HEARD, CLAUDE E. ET AL | HILCORP ENERGY COMPANY | 0 | 0 | 2021-06 | 2026-03 |