Fields: SHAFTER LAKE (DEVONIAN)
Cum Oil
400k BBL
Cum Gas
185k MCF
casinghead
Wells
6
Production
1993-01 — 2026-04
Peak Month
1993-08
Production History Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil: 400,485 BBL Cum Gas: 184,595 MCF
RRC production reported through Apr 2026 · recent months incomplete
Decline Curve Analysis
qi
1,886 BBL/mo
Di (annual)
4.7%
b-factor
0.0
EUR
436,815 BBL
R-squared
0.795
type
exponential
Operator History (from monthly production reports)
Wells (6)
| WELL# | API | OPERATOR | PERMITS | DEPTH | LAST_ISSUED |
|---|---|---|---|---|---|
| 7 L | 42-003-05365 | HIGHMARK ENERGY OPERATING, LLC | 1 | 6,775 | 2014-09-16 |
| D 7 L | 42-003-05365 | HIGHMARK ENERGY OPERATING, LLC | 1 | 6,775 | 2014-09-16 |
| 6 | 42-003-05364 | HIGHMARK ENERGY OPERATING, LLC | 1 | 9,888 | 1987-05-20 |
| D 6 | 42-003-05364 | HIGHMARK ENERGY OPERATING, LLC | 1 | 9,888 | 1987-05-20 |
| 2 L | 42-003-05382 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| D 2 L | 42-003-05382 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |