< leases

UL 20 FLATHEAD

Oil · District 08 · Lease #48623

Operator: PERCUSSION PETROLEUM OPER II,LLC

Fields: PHANTOM (WOLFCAMP)

Cum Oil

439k BBL

Cum Gas

687k MCF

casinghead

Wells

4

Production

2016-12 — 2026-04

Peak Month

2017-07

Production History

Cum Oil: 439,321 BBL Cum Gas: 686,767 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

11,806 BBL/mo

Di (annual)

50.5%

b-factor

0.2

EUR

350,121 BBL

R-squared

0.722

type

hyperbolic

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
2018-02 — 2021-02 OASIS PETROLEUM PERMIAN LLC 37 mo
2016-12 — 2018-01 FORGE ENERGY, LLC 14 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
A004H42-495-34620APACHE CORPORATION112,1512021-07-22
B003H42-495-34619APACHE CORPORATION112,1512021-07-22
2H42-495-33782APACHE CORPORATION113,0002017-02-01
1H42-495-33739APACHE CORPORATION112,9002016-08-10