UL YELLOWTAIL I 21-29-17 WA

Oil · District 08 · Lease #58157

Operator: PERCUSSION PETROLEUM OPER II,LLC

Cum Oil

510k BBL

Cum Gas

540k MCF

casinghead

Wells

1

Production

2022-09 — 2026-04

Peak Month

2022-10

Production History

Cum Oil: 510,027 BBL Cum Gas: 540,345 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

34,652 BBL/mo

Di (annual)

87.9%

b-factor

0.1

EUR

525,839 BBL

R-squared

0.921

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
2022-09 — 2023-07 PERCUSSION PETROLEUM OPER II,LLC 11 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9HAPACHE CORPORATION313,5002022-02-16