RIO SAN MARCOS 36-45 UNIT 1A
Oil · District 08 · Lease #53693
Operator: ENDEAVOR ENERGY RESOURCES L.P.
Fields: SPRABERRY (TREND AREA) R 40 EXC
Cum Oil
1.3M BBL
Cum Gas
4.3M MCF
casinghead
Wells
5
Production
2020-02 — 2026-04
Peak Month
2021-10
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: 1,251,662 BBL Cum Gas: 4,253,666 MCF
RRC production reported through Apr 2026 · recent months incomplete
Decline Curve Analysis
qi
47,623 BBL/mo
Di (annual)
60.6%
b-factor
0.3
EUR
1,341,187 BBL
R-squared
0.930
type
hyperbolic
Operator History (from monthly production reports)
Wells (5)
| WELL# | API | OPERATOR | PERMITS | DEPTH | LAST_ISSUED |
|---|---|---|---|---|---|
| 125 | 42-329-43461 | DIAMONDBACK E&P LLC | 2 | 11,000 | 2019-06-13 |
| 134 | 42-329-43462 | DIAMONDBACK E&P LLC | 2 | 11,000 | 2019-06-13 |
| 135 | 42-329-43463 | DIAMONDBACK E&P LLC | 2 | 11,000 | 2019-06-13 |
| 143 | 42-329-43464 | DIAMONDBACK E&P LLC | 2 | 11,000 | 2019-06-13 |
| 144 | 42-329-43465 | DIAMONDBACK E&P LLC | 3 | 11,000 | 2019-06-13 |