PIER '21'

Oil · District 08 · Lease #42744

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

36k BBL

Cum Gas

53k MCF

casinghead

Wells

1

Production

2012-05 — 2026-04

Peak Month

2012-09

Production History

Cum Oil: 35,525 BBL Cum Gas: 52,787 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

330 BBL/mo

Di (annual)

9.4%

b-factor

0.0

EUR

41,838 BBL

R-squared

0.384

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2012-05 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 152 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC112,0002012-02-06