RIO SABINE 39-42 UNIT 1

Oil · District 08 · Lease #59599

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

3.6M BBL

Cum Gas

12.2M MCF

casinghead

Wells

18

Production

2023-07 — 2026-04

Peak Month

2023-12

Production History

Cum Oil: 3,600,664 BBL Cum Gas: 12,189,808 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

186,844 BBL/mo

Di (annual)

81.9%

b-factor

0.0

EUR

2,738,758 BBL

R-squared

0.617

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2023-07 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 18 mo

Wells (18)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
141DIAMONDBACK E&P LLC19,9462022-09-22
142DIAMONDBACK E&P LLC19,9462022-09-22
143DIAMONDBACK E&P LLC29,9462022-09-22
234DIAMONDBACK E&P LLC19,9462022-09-22
244DIAMONDBACK E&P LLC19,9462022-09-22
245DIAMONDBACK E&P LLC19,9462022-09-22
122DIAMONDBACK E&P LLC19,8912022-09-16
123DIAMONDBACK E&P LLC110,6722022-09-16
131DIAMONDBACK E&P LLC19,9462022-09-16
132DIAMONDBACK E&P LLC19,9462022-09-16
133DIAMONDBACK E&P LLC19,9462022-09-16
224DIAMONDBACK E&P LLC19,8912022-09-16
225DIAMONDBACK E&P LLC19,8912022-09-16
121DIAMONDBACK E&P LLC19,8912022-09-07
111DIAMONDBACK E&P LLC19,8912022-09-06
112DIAMONDBACK E&P LLC29,8912022-09-06
213DIAMONDBACK E&P LLC19,8912022-09-06
214DIAMONDBACK E&P LLC19,8912022-09-06