NAIL "1"

Oil · District 08 · Lease #42047

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

103k BBL

Cum Gas

158k MCF

casinghead

Wells

2

Production

2011-10 — 2026-04

Peak Month

2017-10

Production History

Cum Oil: 102,880 BBL Cum Gas: 157,593 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

997 BBL/mo

Di (annual)

12.5%

b-factor

0.0

EUR

95,525 BBL

R-squared

0.345

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2011-10 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 159 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC112,0002012-05-18
1DIAMONDBACK E&P LLC212,0002011-02-01