RIPPSTEIN-GOTTHARDT UNIT

Oil · District 02 · Lease #9923

Operator: MARATHON OIL EF LLC

Cum Oil

2.0M BBL

Cum Gas

2.9M MCF

casinghead

Wells

10

Production

2012-02 — 2026-04

Peak Month

2016-09

Production History

Cum Oil: 2,014,419 BBL Cum Gas: 2,941,057 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

55,513 BBL/mo

Di (annual)

246.6%

b-factor

1.3

EUR

2,010,635 BBL

R-squared

0.425

type

hyperbolic

Operator History (from monthly production reports)

2012-02 — 2026-07 MARATHON OIL EF LLC 174 mo

Wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
505HMARATHON OIL EF LLC222,0002020-09-01
503HMARATHON OIL EF LLC118,5002016-02-04
4HMARATHON OIL EF LLC218,5002016-02-01
504HMARATHON OIL EF LLC118,5002016-02-01
5HMARATHON OIL EF LLC118,5002016-02-01
2HMARATHON OIL EF LLC119,0002015-10-19
3HMARATHON OIL EF LLC119,0002015-10-19
501HMARATHON OIL EF LLC119,0002015-10-19
502HMARATHON OIL EF LLC119,0002015-10-19
1HMARATHON OIL EF LLC113,5002011-10-20