SAM '1'

Oil · District 7C · Lease #18523

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

41k BBL

Cum Gas

242k MCF

casinghead

Wells

1

Production

2013-06 — 2026-04

Peak Month

2013-08

Production History

Cum Oil: 40,940 BBL Cum Gas: 242,057 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

416 BBL/mo

Di (annual)

10.0%

b-factor

0.0

EUR

49,789 BBL

R-squared

0.381

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2013-06 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 139 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8DIAMONDBACK E&P LLC312,0002013-04-02