GRETA (4400)
Field #36867780 · District 2 · --
Leases
43
Operators
28
Cum Oil
4.9M 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 |
|---|---|---|---|
| GRETA OPERATING COMPANY LLC | 12 | 1.2M | 2026-03 |
| CHILTON ENERGY | 9 | 161k | 2020-07 |
| PRIMROSE OPERATING COMPANY | 6 | 2.4M | 2026-03 |
| DEWBRE PETROLEUM CORPORATION | 3 | 77k | 2026-03 |
| SOUTH TEXAS OPERATING COMPANY | 2 | 156k | 2026-03 |
| EXXON CORP. | 2 | 7k | 1998-12 |
| PENNZOIL EXPLORATION & PROD. CO. | 2 | 132k | 2026-03 |
| CTR PETROLEUM, INC. | 1 | 0 | 1995-09 |
| KOVAR OPERATING, LLC | 1 | 497k | 2021-09 |
| QUINTANA PET. CORP. | 1 | 0 | 1993-03 |
Lease Types
Leases (43)
| TYPE | LEASE | OPERATOR | OIL (BBL) | GAS (MCF) | FIRST | LAST |
|---|---|---|---|---|---|---|
| Oil | HEARD, FANNIE V. W. | PRIMROSE OPERATING COMPANY | 883k | 0 | 1993-01 | 2026-03 |
| Oil | HEARD, J. F. B. | PRIMROSE OPERATING COMPANY | 865k | 0 | 1993-01 | 2026-03 |
| Oil | LAMBERT, M. F. | KOVAR OPERATING, LLC | 497k | 0 | 1993-01 | 2021-09 |
| Oil | HEARD, J. F. B.- TEX | GRETA OPERATING COMPANY LLC | 402k | 0 | 1993-01 | 2026-03 |
| Oil | O'BRIEN, J. M. | PRIMROSE OPERATING COMPANY | 378k | 0 | 1993-01 | 2026-03 |
| Oil | HEARD, F. V. W. | JOY RESOURCES, INC. | 308k | 0 | 1993-01 | 2026-03 |
| Oil | OBRIEN, J. J., -B- | GRETA OPERATING COMPANY LLC | 273k | 0 | 1993-01 | 2026-03 |
| Oil | OCONNOR, THOS. | GRETA OPERATING COMPANY LLC | 146k | 0 | 1993-01 | 2026-03 |
| Oil | LAMBERT, M. F. | PENNZOIL EXPLORATION & PROD. CO. | 132k | 0 | 1993-01 | 2026-03 |
| Oil | OBRIEN, J. J., -A- | GRETA OPERATING COMPANY LLC | 124k | 0 | 1993-01 | 2026-03 |
| Oil | OBRIEN, J. M. | PRIMROSE OPERATING COMPANY | 116k | 0 | 1993-01 | 2005-10 |
| Oil | OBRIEN, J. J., -A- | GRETA OPERATING COMPANY LLC | 108k | 0 | 1993-01 | 2026-03 |
| Oil | OBRIEN, J. M. | SOUTH TEXAS OPERATING COMPANY | 100k | 0 | 1993-01 | 2026-03 |
| Oil | OCONNOR, THOS. | PRIMROSE OPERATING COMPANY | 84k | 0 | 1993-01 | 2014-07 |
| Oil | OCONNOR, T. | CHILTON ENERGY | 84k | 0 | 1993-01 | 2012-04 |
| Oil | HEARD, J. F. B. | CHILTON ENERGY | 77k | 0 | 1993-01 | 2008-09 |
| Oil | OBRIEN,J.M.,-A- EAST 101 AC. 6 | DEWBRE PETROLEUM CORPORATION | 76k | 0 | 1993-01 | 2026-03 |
| Oil | OBRIEN, J. M., -B- | PRIMROSE OPERATING COMPANY | 66k | 0 | 1993-01 | 2020-07 |
| Oil | J.M. O'BRIEN JLB | SOUTH TEXAS OPERATING COMPANY | 55k | 0 | 2022-11 | 2026-03 |
| Oil | J.F.B. HEARD-ARCO | GRETA OPERATING COMPANY LLC | 42k | 0 | 2014-10 | 2026-03 |
| Oil | O'CONNOR, THOMAS | DORCHESTER OPERATING COMPANY LLC | 37k | 0 | 2010-07 | 2026-03 |
| Oil | O'CONNOR | GRETA OPERATING COMPANY LLC | 36k | 0 | 2022-06 | 2026-03 |
| Oil | J.M. O'BRIEN 'J' | GRETA OPERATING COMPANY LLC | 13k | 0 | 2016-01 | 2026-03 |
| Oil | JFB HEARD - HTEX #2H | GRETA OPERATING COMPANY LLC | 8k | 0 | 2019-09 | 2026-03 |
| Oil | OBRIEN, J. M., -D- | EXXON CORP. | 7k | 0 | 1993-01 | 1998-12 |
| Oil | JFB HEARD - HTEX #1H | GRETA OPERATING COMPANY LLC | 5k | 0 | 2019-08 | 2026-03 |
| Oil | THOMAS O'CONNOR | ACOCK/ANAQUA OPERATING CO., LP | 3k | 0 | 2015-10 | 2018-12 |
| Oil | OBRIEN, J. M., -B- | DEWBRE PETROLEUM CORPORATION | 2k | 0 | 1993-01 | 2026-03 |
| Oil | W. J. FOX "A" | HILCORP ENERGY COMPANY | 72 | 0 | 2008-08 | 2026-03 |
| Oil | OBRIEN, J. M., -B- | CHILTON ENERGY | 0 | 0 | 1993-01 | 2020-07 |
| Gas | OBRIEN, J. M. | DEWBRE PETROLEUM CORPORATION | 0 | 0 | 1993-01 | 1993-01 |
| Oil | OBRIEN, J. M., -F- | CHILTON ENERGY | 0 | 0 | 1993-01 | 1994-03 |
| Oil | POWERS | CTR PETROLEUM, INC. | 0 | 0 | 1993-01 | 1995-09 |
| Oil | OBRIEN, J. M., -B- | GRETA OPERATING COMPANY LLC | 0 | 0 | 1993-01 | 2022-01 |
| Oil | HEARD, CLAUDE E. | QUINTANA PET. CORP. | 0 | 0 | 1993-01 | 1993-03 |
| Gas | HEARD, FANNIE V. W. | EXXON CORP. | 0 | 0 | 1993-11 | 1993-12 |
| Oil | OBRIEN, J. M., -D- & -E- | CHILTON ENERGY | 0 | 0 | 1993-01 | 1995-11 |
| Gas | LAMBERT, M. F. | PENNZOIL EXPLORATION & PROD. CO. | 0 | 0 | 1993-01 | 2023-06 |
| Oil | OBRIEN, J. J., -C- | CHILTON ENERGY | 0 | 0 | 1993-01 | 2007-06 |
| Oil | OBRIEN, J. M., -A- | CHILTON ENERGY | 0 | 0 | 1993-01 | 2001-06 |
| Oil | OBRIEN, J. M., -C- | GRETA OPERATING COMPANY LLC | 0 | 0 | 1993-01 | 2022-01 |
| Oil | OBRIEN, J. M., -J & L- | CHILTON ENERGY | 0 | 0 | 1993-01 | 1993-05 |
| Oil | OBRIEN, J. M., -D- | CHILTON ENERGY | 0 | 0 | 1993-01 | 2012-04 |