THOMAS "4"

Oil · District 08 · Lease #37590

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

95k BBL

Cum Gas

98k MCF

casinghead

Wells

2

Production

2005-06 — 2026-04

Peak Month

2012-07

Production History

Cum Oil: 94,632 BBL Cum Gas: 97,690 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,128 BBL/mo

Di (annual)

26.8%

b-factor

0.2

EUR

62,877 BBL

R-squared

0.706

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-06 DIAMONDBACK E&P LLC 18 mo
2005-06 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 235 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC212,0002018-07-06
2DIAMONDBACK E&P LLC312,0002012-01-11