CARTER UNIT

Oil · District 02 · Lease #9683

Operator: MARATHON OIL EF LLC

Cum Oil

2.3M BBL

Cum Gas

3.7M MCF

casinghead

Wells

7

Production

2011-06 — 2026-04

Peak Month

2014-08

Production History

Cum Oil: 2,309,395 BBL Cum Gas: 3,707,921 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

141,624 BBL/mo

Di (annual)

256.3%

b-factor

0.9

EUR

2,724,763 BBL

R-squared

0.673

type

hyperbolic

Operator History (from monthly production reports)

2011-11 — 2026-07 MARATHON OIL EF LLC 177 mo
2011-06 — 2011-10 HILCORP ENERGY COMPANY 5 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
501HMARATHON OIL EF LLC122,0002019-03-05
6HMARATHON OIL EF LLC122,0002019-03-05
5HMARATHON OIL EF LLC118,2002013-11-27
3HMARATHON OIL EF LLC118,5002013-11-23
4HMARATHON OIL EF LLC119,0002013-11-23
2HMARATHON OIL EF LLC218,0002012-09-13
1HMARATHON OIL EF LLC213,5002010-11-19