BRAUN -10-

Oil · District 08 · Lease #39314

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

80k BBL

Cum Gas

216k MCF

casinghead

Wells

2

Production

2009-04 — 2026-04

Peak Month

2015-01

Production History

Cum Oil: 80,192 BBL Cum Gas: 215,729 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

647 BBL/mo

Di (annual)

17.8%

b-factor

0.0

EUR

43,546 BBL

R-squared

0.473

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2009-04 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 189 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC313,7691987-11-23
2DIAMONDBACK E&P LLC210,9001986-03-27