CHAPMAN-HUMMEL UNIT

Oil · District 02 · Lease #10297

Operator: MARATHON OIL EF LLC

Cum Oil

491k BBL

Cum Gas

704k MCF

casinghead

Wells

4

Production

2012-10 — 2026-04

Peak Month

2024-08

Production History

Cum Oil: 491,132 BBL Cum Gas: 703,760 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

43,902 BBL/mo

Di (annual)

778.4%

b-factor

1.6

EUR

1,149,611 BBL

R-squared

0.881

type

hyperbolic

Operator History (from monthly production reports)

2012-10 — 2026-07 MARATHON OIL EF LLC 166 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC122,0002024-04-03
3HMARATHON OIL EF LLC122,0002024-04-03
4HMARATHON OIL EF LLC122,0002024-04-03
1HMARATHON OIL EF LLC114,5002012-08-23