C.PFEIL-C.KELLNER-C.HUMMEL PSA

Oil · District 01 · Lease #19583

Operator: MARATHON OIL EF LLC

Cum Oil

324k BBL

Cum Gas

511k MCF

casinghead

Wells

1

Production

2019-02 — 2026-04

Peak Month

2019-07

Production History

Cum Oil: 323,779 BBL Cum Gas: 511,246 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

14,138 BBL/mo

Di (annual)

86.6%

b-factor

0.4

EUR

322,488 BBL

R-squared

0.806

type

hyperbolic

Operator History (from monthly production reports)

2019-02 — 2026-07 MARATHON OIL EF LLC 90 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC120,0002018-12-31