WILHELM-SMITH UNIT A

Oil · District 01 · Lease #16354

Operator: MARATHON OIL EF LLC

Cum Oil

853k BBL

Cum Gas

948k MCF

casinghead

Wells

4

Production

2012-08 — 2026-04

Peak Month

2013-01

Production History

Cum Oil: 853,049 BBL Cum Gas: 948,270 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

37,488 BBL/mo

Di (annual)

73.8%

b-factor

0.3

EUR

867,963 BBL

R-squared

0.830

type

hyperbolic

Operator History (from monthly production reports)

2012-08 — 2026-07 MARATHON OIL EF LLC 168 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC117,5002012-07-17
3HMARATHON OIL EF LLC117,5002012-07-17
4HMARATHON OIL EF LLC117,5002012-07-17
1HMARATHON OIL EF LLC117,5002012-07-14