TUNNELL "16"

Oil · District 08 · Lease #40550

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

113k BBL

Cum Gas

221k MCF

casinghead

Wells

2

Production

2010-09 — 2026-04

Peak Month

2011-10

Production History

Cum Oil: 112,649 BBL Cum Gas: 220,603 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,920 BBL/mo

Di (annual)

57.7%

b-factor

0.9

EUR

122,468 BBL

R-squared

0.775

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2010-09 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 172 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC212,0002018-03-21
1DIAMONDBACK E&P LLC312,0002017-11-29