COX 9-12 UNIT 2

Oil · District 08 · Lease #51547

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

2.3M BBL

Cum Gas

5.3M MCF

casinghead

Wells

13

Production

2018-11 — 2026-04

Peak Month

2025-03

Production History

Cum Oil: 2,328,945 BBL Cum Gas: 5,343,061 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

159,967 BBL/mo

Di (annual)

263.3%

b-factor

0.6

EUR

1,727,238 BBL

R-squared

0.990

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2018-11 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 74 mo

Wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
152DIAMONDBACK E&P LLC111,0152023-10-03
153DIAMONDBACK E&P LLC111,0152023-10-03
161DIAMONDBACK E&P LLC111,0152023-09-26
162DIAMONDBACK E&P LLC111,0152023-09-26
163DIAMONDBACK E&P LLC111,0152023-09-26
174DIAMONDBACK E&P LLC111,0152023-09-26
251DIAMONDBACK E&P LLC111,0152023-09-26
175DIAMONDBACK E&P LLC111,0152023-09-21
173DIAMONDBACK E&P LLC211,0002018-01-30
271DIAMONDBACK E&P LLC111,0002018-01-29
272DIAMONDBACK E&P LLC111,0002018-01-29
281DIAMONDBACK E&P LLC111,0002018-01-29
282DIAMONDBACK E&P LLC111,0002018-01-29