GOLDAPP, WM.

Oil · District 03 · Lease #21078

Operator: MARATHON OIL COMPANY

Cum Oil

131k BBL

Cum Gas

378k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1993-02

Production History

Cum Oil: 130,799 BBL Cum Gas: 377,994 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,274 BBL/mo

Di (annual)

55.5%

b-factor

0.7

EUR

118,833 BBL

R-squared

0.833

type

hyperbolic

Operator History (from monthly production reports)

2018-08 — 2026-07 MAGNOLIA OIL & GAS OPERATING LLC 96 mo
2009-09 — 2018-07 ENERVEST OPERATING, L.L.C. 107 mo
1993-01 — 2009-08 MARATHON OIL COMPANY 200 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5MAGNOLIA OIL & GAS OPERATING LLC513,0812004-09-23