GROSS-MCLEAN UNIT

Oil · District 02 · Lease #10338

Operator: MARATHON OIL EF LLC

Cum Oil

595k BBL

Cum Gas

1.6M MCF

casinghead

Wells

6

Production

2012-11 — 2026-04

Peak Month

2012-12

Production History

Cum Oil: 595,479 BBL Cum Gas: 1,596,225 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

39,258 BBL/mo

Di (annual)

97.7%

b-factor

0.3

EUR

687,949 BBL

R-squared

0.765

type

hyperbolic

Operator History (from monthly production reports)

2012-11 — 2026-07 MARATHON OIL EF LLC 165 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
502HMARATHON OIL EF LLC122,0002019-06-14
4HMARATHON OIL EF LLC118,0002018-06-20
5HMARATHON OIL EF LLC118,0002018-06-20
3HMARATHON OIL EF LLC117,0002013-01-30
2HMARATHON OIL EF LLC115,0002012-08-09
1HMARATHON OIL EF LLC215,0002012-07-23