TED BUTLER UNIT

Oil · District 02 · Lease #10028

Operator: MARATHON OIL EF LLC

Cum Oil

760k BBL

Cum Gas

1.1M MCF

casinghead

Wells

4

Production

2012-03 — 2026-04

Peak Month

2021-06

Production History

Cum Oil: 760,115 BBL Cum Gas: 1,148,938 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

49,731 BBL/mo

Di (annual)

113.5%

b-factor

0.0

EUR

526,061 BBL

R-squared

0.706

type

exponential

Operator History (from monthly production reports)

2012-03 — 2026-07 MARATHON OIL EF LLC 173 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC122,0002020-12-14
3HMARATHON OIL EF LLC122,0002020-12-14
4HMARATHON OIL EF LLC122,0002020-12-14
1HMARATHON OIL EF LLC216,9902012-02-03