DORIS

Oil · District 03 · Lease #13656

Operator: U. S. OPERATING, INC.

Cum Oil

6k BBL

Cum Gas

124k MCF

casinghead

Wells

1

Production

1993-01 — 2000-06

Peak Month

1993-01

Production History

Cum Oil: 5,690 BBL Cum Gas: 124,260 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

148 BBL/mo

Di (annual)

53.2%

b-factor

0.9

EUR

10,036 BBL

R-squared

0.644

type

hyperbolic

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 (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1U. S. OPERATING INC.110,0001979-11-20