THOMAS "9"

Oil · District 08 · Lease #38118

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

133k BBL

Cum Gas

169k MCF

casinghead

Wells

2

Production

2007-01 — 2025-03

Peak Month

2008-03

Production History

Cum Oil: 132,624 BBL Cum Gas: 168,685 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,516 BBL/mo

Di (annual)

33.7%

b-factor

0.3

EUR

125,949 BBL

R-squared

0.903

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2007-01 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 216 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC312,0002015-12-01
2DIAMONDBACK E&P LLC212,0002015-12-01