UL BIGHORN D 21-31-19

Oil · District 08 · Lease #51497

Operator: PERCUSSION PETROLEUM OPER II,LLC

Cum Oil

512k BBL

Cum Gas

503k MCF

casinghead

Wells

1

Production

2018-06 — 2026-04

Peak Month

2018-07

Production History

Cum Oil: 512,114 BBL Cum Gas: 503,410 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,915 BBL/mo

Di (annual)

29.8%

b-factor

0.0

EUR

399,031 BBL

R-squared

0.365

type

exponential

Operator History (from monthly production reports)

2024-08 — 2026-07 APACHE CORPORATION 24 mo
2023-08 — 2024-07 CALLON PERMIAN II, LLC 12 mo
2021-03 — 2023-07 PERCUSSION PETROLEUM OPER II,LLC 29 mo
2018-06 — 2021-02 OASIS PETROLEUM PERMIAN LLC 33 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5104HAPACHE CORPORATION212,5002017-12-22