JONES 21

Oil · District 08 · Lease #46686

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

38k BBL

Cum Gas

55k MCF

casinghead

Wells

1

Production

2015-07 — 2026-04

Peak Month

2015-10

Production History

Cum Oil: 37,715 BBL Cum Gas: 55,283 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

659 BBL/mo

Di (annual)

19.2%

b-factor

0.0

EUR

41,012 BBL

R-squared

0.474

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2015-07 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 114 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC112,5002015-05-19