MCCOY-RAFTERS UNIT

Oil · District 02 · Lease #10609

Operator: MARATHON OIL EF LLC

Cum Oil

1.7M BBL

Cum Gas

5.3M MCF

casinghead

Wells

6

Production

2013-08 — 2026-04

Peak Month

2013-12

Production History

Cum Oil: 1,682,556 BBL Cum Gas: 5,326,262 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

51,107 BBL/mo

Di (annual)

53.4%

b-factor

0.3

EUR

1,631,289 BBL

R-squared

0.725

type

hyperbolic

Operator History (from monthly production reports)

2013-08 — 2026-07 MARATHON OIL EF LLC 156 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
502HMARATHON OIL EF LLC120,5002014-09-25
4HMARATHON OIL EF LLC120,5002014-09-16
501HMARATHON OIL EF LLC120,5002014-09-16
2HMARATHON OIL EF LLC120,4502013-07-18
3HMARATHON OIL EF LLC119,7002013-07-18
1HMARATHON OIL EF LLC117,6102013-04-11