RIO SAN MARCOS 36-45 UNIT 2B

Oil · District 08 · Lease #62143

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

377k BBL

Cum Gas

768k MCF

casinghead

Wells

2

Production

2024-05 — 2026-04

Peak Month

2025-02

Production History

Cum Oil: 376,950 BBL Cum Gas: 768,476 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

61,791 BBL/mo

Di (annual)

342.4%

b-factor

0.9

EUR

930,588 BBL

R-squared

0.974

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2024-05 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 8 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
263DIAMONDBACK E&P LLC111,0002024-03-07
283DIAMONDBACK E&P LLC111,0002024-02-28