YELLOWSTONE 28-1

Oil · District 08 · Lease #53671

Operator: CLEAR FORK, INCORPORATED

Cum Oil

527k BBL

Cum Gas

915k MCF

casinghead

Wells

1

Production

2019-11 — 2026-04

Peak Month

2020-03

Production History

Cum Oil: 526,854 BBL Cum Gas: 914,637 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

28,129 BBL/mo

Di (annual)

145.9%

b-factor

0.6

EUR

532,694 BBL

R-squared

0.872

type

hyperbolic

Operator History (from monthly production reports)

2023-11 — 2026-07 BROWNING OIL COMPANY, INC. 33 mo
2019-11 — 2023-10 CLEAR FORK, INCORPORATED 48 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HBROWNING OIL COMPANY, INC.17,5002019-06-27