BRETHERN

Oil · District 08 · Lease #39720

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

63k BBL

Cum Gas

138k MCF

casinghead

Wells

1

Production

2009-06 — 2025-08

Peak Month

2009-11

Production History

Cum Oil: 62,747 BBL Cum Gas: 137,911 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

963 BBL/mo

Di (annual)

28.6%

b-factor

0.4

EUR

63,370 BBL

R-squared

0.713

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2009-06 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 187 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC612,5002013-05-10