RIO SAN MARCOS 36-45 UNIT 1
Oil · District 08 · Lease #48945
Operator: ENDEAVOR ENERGY RESOURCES L.P.
Fields: SPRABERRY (TREND AREA)
Cum Oil
2.8M BBL
Cum Gas
17.0M MCF
casinghead
Wells
13
Production
2017-09 — 2026-04
Peak Month
2019-05
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: 2,840,323 BBL Cum Gas: 16,950,779 MCF
RRC production reported through Apr 2026 · recent months incomplete
Decline Curve Analysis
qi
270,794 BBL/mo
Di (annual)
313.8%
b-factor
0.7
EUR
2,998,800 BBL
R-squared
0.959
type
hyperbolic
Operator History (from monthly production reports)
Wells (13)
| WELL# | API | OPERATOR | PERMITS | DEPTH | LAST_ISSUED |
|---|---|---|---|---|---|
| 242R | 42-329-42323 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2018-02-26 |
| 211R | 42-329-41977 | DIAMONDBACK E&P LLC | 2 | 11,000 | 2017-09-26 |
| 233 | 42-329-41960 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2017-09-06 |
| 241 | 42-329-41952 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2017-09-06 |
| 242 | 42-329-41958 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2017-09-06 |
| 231 | 42-329-41933 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2017-08-31 |
| 232 | 42-329-41934 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2017-08-31 |
| 222 | 42-329-41841 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2017-07-21 |
| 223 | 42-329-41842 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2017-07-21 |
| 224 | 42-329-41843 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2017-07-21 |
| 211 | 42-329-41839 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2017-07-19 |
| 221 | 42-329-41840 | DIAMONDBACK E&P LLC | 1 | 11,000 | 2017-07-19 |
| 212 | 42-329-41824 | DIAMONDBACK E&P LLC | 2 | 11,000 | 2017-07-14 |