SHINER UNIT B

Oil · District 02 · Lease #10574

Operator: MARATHON OIL EF LLC

Cum Oil

90k BBL

Cum Gas

320k MCF

casinghead

Wells

3

Production

2013-06 — 2023-04

Peak Month

2013-08

Production History

Cum Oil: 89,756 BBL Cum Gas: 319,807 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,694 BBL/mo

Di (annual)

126.0%

b-factor

0.5

EUR

86,726 BBL

R-squared

0.894

type

hyperbolic

Operator History (from monthly production reports)

2013-06 — 2026-07 MARATHON OIL EF LLC 158 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC126,0002021-03-09
3HMARATHON OIL EF LLC126,0002021-03-09
1HMARATHON OIL EF LLC217,2002013-01-29