KOONCE "39"

Oil · District 08 · Lease #37047

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

126k BBL

Cum Gas

256k MCF

casinghead

Wells

2

Production

2003-01 — 2026-04

Peak Month

2007-09

Production History

Cum Oil: 125,982 BBL Cum Gas: 255,951 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

771 BBL/mo

Di (annual)

8.5%

b-factor

0.0

EUR

107,182 BBL

R-squared

0.495

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2003-01 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 264 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC211,0002018-08-08
2DIAMONDBACK E&P LLC212,0002018-07-05