DARLENE

Oil · District 03 · Lease #18886

Operator: U. S. OPERATING, INC.

Cum Oil

74k BBL

Cum Gas

884k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

1998-02

Production History

Cum Oil: 73,676 BBL Cum Gas: 884,274 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,538 BBL/mo

Di (annual)

47.8%

b-factor

0.5

EUR

71,279 BBL

R-squared

0.654

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 (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3MAGNOLIA OIL & GAS OPERATING LLC39,2002002-05-30
2MAGNOLIA OIL & GAS OPERATING LLC311,0001997-11-06
2REMAGNOLIA OIL & GAS OPERATING LLC311,0001997-11-06