KUBENA OIL UNIT

Oil · District 02 · Lease #11908

Operator: SULPHUR RIVER EXPLORATION, INC.

Cum Oil

36k BBL

Cum Gas

232k MCF

casinghead

Wells

1

Production

2019-06 — 2026-04

Peak Month

2022-08

Production History

Cum Oil: 35,585 BBL Cum Gas: 232,435 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,448 BBL/mo

Di (annual)

247.2%

b-factor

0.5

EUR

32,958 BBL

R-squared

0.693

type

hyperbolic

Operator History (from monthly production reports)

2023-06 — 2026-07 CAPITAL STAR OIL & GAS, INC. 38 mo
2019-06 — 2023-05 SULPHUR RIVER EXPLORATION, INC. 48 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3CAPITAL STAR OIL & GAS, INC.214,0002019-07-03