BLOCK 42 (PENN)
Field #9450200 · District 9 · --
Leases
17
Operators
12
Cum Oil
453k BBL
Cum Gas
1.9M MCF
Cum Cond
76k 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 |
|---|---|---|---|
| UMC PETROLEUM CORPORATION | 7 | 372k | 2026-04 |
| OCEAN ENERGY, INC. | 4 | 69k | 2026-04 |
| SUMMIT PETROLEUM LLC | 3 | 12k | 2009-01 |
| PENNZOIL PETROLEUM COMPANY | 2 | 0 | 1993-06 |
| RATTLER MIDSTREAM OPERATING LLC | 1 | 0 | -- |
Lease Types
Leases (17)
| TYPE | LEASE | OPERATOR | OIL (BBL) | GAS (MCF) | FIRST | LAST |
|---|---|---|---|---|---|---|
| Oil | MCELROY RANCH CO. -F- | UMC PETROLEUM CORPORATION | 372k | 5.4M | 1993-01 | 2026-04 |
| Oil | MCELROY RANCH CO. "G" | OCEAN ENERGY, INC. | 69k | 1.4M | 1998-06 | 2026-04 |
| Oil | BEVERLY "A" | SUMMIT PETROLEUM LLC | 12k | 13k | 2008-05 | 2009-01 |
| Gas | MCELROY RANCH CO. "F" | UMC PETROLEUM CORPORATION | 0 | 194k | 1993-01 | 1997-09 |
| Oil | MCELROY RANCH CO - F - SWD | RATTLER MIDSTREAM OPERATING LLC | 0 | 0 | 2022-12 | -- |
| Gas | MCELROY RANCH CO. -F- | PENNZOIL PETROLEUM COMPANY | 0 | 36k | 1993-01 | 1993-06 |
| Gas | MCELROY RANCH CO. "F" | UMC PETROLEUM CORPORATION | 0 | 83k | 1996-03 | 2010-11 |
| Gas | MCELROY RANCH CO. -F- | PENNZOIL PETROLEUM COMPANY | 0 | 13k | 1993-01 | 1993-06 |
| Gas | MCELROY RANCH CO. "F" | UMC PETROLEUM CORPORATION | 0 | 80k | 1993-01 | 2013-03 |
| Gas | MCELROY RANCH CO. "F" | UMC PETROLEUM CORPORATION | 0 | 958k | 1993-01 | 2026-04 |
| Gas | MCELROY RANCH CO. "F" | OCEAN ENERGY, INC. | 0 | 177k | 2000-07 | 2023-05 |
| Gas | MCELROY RANCH CO. "F" | UMC PETROLEUM CORPORATION | 0 | 74k | 1993-01 | 2010-11 |
| Oil | ELIZABETH "A" | SUMMIT PETROLEUM LLC | 0 | 0 | 2008-04 | -- |
| Gas | MCELROY RANCH CO. "F" | UMC PETROLEUM CORPORATION | 0 | 24k | 1993-01 | 1995-03 |
| Oil | YVONNE | SUMMIT PETROLEUM LLC | 0 | 0 | 2008-02 | -- |
| Gas | MCELROY RANCH CO. "G" | OCEAN ENERGY, INC. | 0 | 227k | 1998-08 | 2007-08 |
| Oil | MCELROY RANCH CO "F" | OCEAN ENERGY, INC. | 0 | 0 | 1998-06 | -- |