Fields: SHAFTER LAKE (SAN ANDRES)
Cum Oil
743k BBL
Cum Gas
422k MCF
casinghead
Wells
44
Production
2001-08 — 2026-04
Peak Month
2008-07
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: 742,723 BBL Cum Gas: 422,486 MCF
RRC production reported through Apr 2026 · recent months incomplete
Decline Curve Analysis
qi
6,529 BBL/mo
Di (annual)
17.1%
b-factor
0.1
EUR
506,703 BBL
R-squared
0.947
type
hyperbolic
Operator History (from monthly production reports)
Wells (44)
| WELL# | API | OPERATOR | PERMITS | DEPTH | LAST_ISSUED |
|---|---|---|---|---|---|
| 23A | 42-003-38891 | HIGHMARK ENERGY OPERATING, LLC | 1 | 4,800 | 2001-09-20 |
| 11 | 42-003-38858 | HIGHMARK ENERGY OPERATING, LLC | 2 | 4,800 | 2001-08-16 |
| 11W | 42-003-38858 | HIGHMARK ENERGY OPERATING, LLC | 2 | 4,800 | 2001-08-16 |
| 12W | 42-003-38859 | HIGHMARK ENERGY OPERATING, LLC | 1 | 4,800 | 2001-08-16 |
| 13W | 42-003-38860 | HIGHMARK ENERGY OPERATING, LLC | 1 | 4,800 | 2001-08-16 |
| 19W | 42-003-38861 | HIGHMARK ENERGY OPERATING, LLC | 1 | 4,800 | 2001-08-16 |
| 20W | 42-003-38862 | HIGHMARK ENERGY OPERATING, LLC | 1 | 4,800 | 2001-08-16 |
| 21W | 42-003-38863 | HIGHMARK ENERGY OPERATING, LLC | 2 | 4,800 | 2001-08-16 |
| 26 | 42-003-38864 | HIGHMARK ENERGY OPERATING, LLC | 2 | 4,800 | 2001-08-16 |
| 26W | 42-003-38864 | HIGHMARK ENERGY OPERATING, LLC | 2 | 4,800 | 2001-08-16 |
| 27W | 42-003-38865 | HIGHMARK ENERGY OPERATING, LLC | 1 | 4,800 | 2001-08-16 |
| 28W | 42-003-38866 | HIGHMARK ENERGY OPERATING, LLC | 1 | 4,800 | 2001-08-16 |
| 33W | 42-003-38867 | HIGHMARK ENERGY OPERATING, LLC | 1 | 4,800 | 2001-08-16 |
| 34W | 42-003-38868 | HIGHMARK ENERGY OPERATING, LLC | 2 | 4,800 | 2001-08-16 |
| 8 | 42-003-38869 | HIGHMARK ENERGY OPERATING, LLC | 1 | 4,800 | 2001-08-16 |
| 37 | 42-003-10505 | HIGHMARK ENERGY OPERATING, LLC | 1 | 7,108 | 2001-08-09 |
| 35 | 42-003-05461 | HIGHMARK ENERGY OPERATING, LLC | 1 | 9,933 | 1993-11-29 |
| 18W | 42-003-37201 | HIGHMARK ENERGY OPERATING, LLC | 1 | 5,000 | 1993-02-05 |
| 5 | 42-003-37202 | HIGHMARK ENERGY OPERATING, LLC | 1 | 5,000 | 1993-02-05 |
| 1 | 42-003-05376 | HIGHMARK ENERGY OPERATING, LLC | 1 | 11,933 | 1982-08-09 |
| 10 | 42-003-10891 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 14 | 42-003-10865 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 14D | 42-003-05378 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 15 | 42-003-10777 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 16 | 42-003-10783 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 17 | 42-003-10888 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 18 | 42-003-10922 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 2 | 42-003-10925 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 22 | 42-003-10855 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 24 | 42-003-10786 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 25 | 42-003-10889 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 29 | 42-003-10908 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 3 | 42-003-10922 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 30 | 42-003-10466 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 31 | 42-003-10890 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 32 | 42-003-10911 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 36 | 42-003-10907 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 38 | 42-003-10910 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 4 | 42-003-10923 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 41 | 42-003-10723 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 42 | 42-003-10740 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 44 | 42-003-10716 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 45 | 42-003-10728 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |
| 9 | 42-003-10876 | HIGHMARK ENERGY OPERATING, LLC | -- | -- | -- |