ECHOLS "22"

Oil · District 08 · Lease #40161

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

24k BBL

Cum Gas

14k MCF

casinghead

Wells

1

Production

2010-02 — 2026-01

Peak Month

2010-04

Production History

Cum Oil: 23,504 BBL Cum Gas: 13,876 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

355 BBL/mo

Di (annual)

60.0%

b-factor

1.2

EUR

29,342 BBL

R-squared

0.563

type

hyperbolic

Operator History (from monthly production reports)

2018-11 — 2026-07 DIAMONDBACK E&P LLC 93 mo
2018-05 — 2018-10 AJAX RESOURCES, LLC 6 mo
2010-02 — 2018-04 ENDEAVOR ENERGY RESOURCES L.P. 99 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC112,0002009-09-30