WILHELM SMITH UNIT B

Oil · District 02 · Lease #10530

Operator: MARATHON OIL EF LLC

Cum Oil

1.4M BBL

Cum Gas

1.6M MCF

casinghead

Wells

6

Production

2013-05 — 2026-04

Peak Month

2018-08

Production History

Cum Oil: 1,380,341 BBL Cum Gas: 1,572,481 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

48,436 BBL/mo

Di (annual)

103.1%

b-factor

0.5

EUR

1,085,733 BBL

R-squared

0.762

type

hyperbolic

Operator History (from monthly production reports)

2013-05 — 2026-07 MARATHON OIL EF LLC 159 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6HMARATHON OIL EF LLC122,0002019-03-11
5HMARATHON OIL EF LLC219,5002017-09-08
3HMARATHON OIL EF LLC119,5002017-08-29
4HMARATHON OIL EF LLC219,5002017-08-29
1HMARATHON OIL EF LLC117,0002013-02-27
2HMARATHON OIL EF LLC117,0002013-02-27