WTH 21-16 B

Oil · District 08 · Lease #52906

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

324k BBL

Cum Gas

2.1M MCF

casinghead

Wells

1

Production

2019-06 — 2026-04

Peak Month

2020-05

Production History

Cum Oil: 324,172 BBL Cum Gas: 2,120,977 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,969 BBL/mo

Di (annual)

41.1%

b-factor

0.0

EUR

261,656 BBL

R-squared

0.539

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2019-06 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 67 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
221DIAMONDBACK E&P LLC210,3302019-02-28