RETZLOFF TOM-MAY PSA C

Oil · District 01 · Lease #19608

Operator: MARATHON OIL EF LLC

Cum Oil

371k BBL

Cum Gas

459k MCF

casinghead

Wells

1

Production

2019-02 — 2026-04

Peak Month

2019-07

Production History

Cum Oil: 371,319 BBL Cum Gas: 458,986 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

22,282 BBL/mo

Di (annual)

267.5%

b-factor

0.8

EUR

345,171 BBL

R-squared

0.840

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HMARATHON OIL EF LLC120,0002018-12-31