SHIRLEY

Oil · District 03 · Lease #13112

Operator: U. S. OPERATING, INC.

Cum Oil

92k BBL

Cum Gas

677k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

1997-06

Production History

Cum Oil: 91,636 BBL Cum Gas: 676,929 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,150 BBL/mo

Di (annual)

19.6%

b-factor

0.0

EUR

70,199 BBL

R-squared

0.560

type

exponential

Operator History (from monthly production reports)

2025-08 — 2026-07 MAGNOLIA OIL & GAS OPERATING LLC 12 mo
1993-01 — 2025-07 U. S. OPERATING, INC. 391 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2MAGNOLIA OIL & GAS OPERATING LLC29,2001987-12-14
1MAGNOLIA OIL & GAS OPERATING LLC110,0001979-11-12