MAY-CHAPMAN

Oil · District 01 · Lease #16009

Operator: MARATHON OIL EF LLC

Cum Oil

2.1M BBL

Cum Gas

3.2M MCF

casinghead

Wells

9

Production

2012-06 — 2026-04

Peak Month

2018-03

Production History

Cum Oil: 2,111,997 BBL Cum Gas: 3,239,812 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

134,203 BBL/mo

Di (annual)

506.0%

b-factor

0.9

EUR

1,447,003 BBL

R-squared

0.970

type

hyperbolic

Operator History (from monthly production reports)

2012-06 — 2026-07 MARATHON OIL EF LLC 170 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6HMARATHON OIL EF LLC118,7002017-02-03
7HMARATHON OIL EF LLC118,7002017-02-03
8HMARATHON OIL EF LLC118,7002017-02-03
9HMARATHON OIL EF LLC118,7002017-02-03
3HMARATHON OIL EF LLC116,6002013-09-27
4HMARATHON OIL EF LLC116,6002013-09-27
5HMARATHON OIL EF LLC116,6002013-09-27
2HMARATHON OIL EF LLC115,5002012-05-18
1HMARATHON OIL EF LLC116,0002012-04-17