RISING STAR

Oil · District 8A · Lease #63161

Operator: THREE SPAN OIL & GAS, INC.

Cum Oil

104k BBL

Cum Gas

19k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1994-08

Production History

Cum Oil: 103,972 BBL Cum Gas: 19,430 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

718 BBL/mo

Di (annual)

12.4%

b-factor

0.3

EUR

90,534 BBL

R-squared

0.817

type

hyperbolic

Operator History (from monthly production reports)

2013-03 — 2026-07 THREE SPAN OIL & GAS, INC. 161 mo
1993-01 — 2013-02 DURHAM, INC. 242 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1RTHREE SPAN OIL & GAS, INC.16,7001980-12-16