GUAJILLO UNIT 15 SOUTH

Oil · District 02 · Lease #12265

Operator: MARATHON OIL EF LLC

Cum Oil

1.0M BBL

Cum Gas

1.0M MCF

casinghead

Wells

5

Production

2022-01 — 2026-04

Peak Month

2022-07

Production History

Cum Oil: 1,026,445 BBL Cum Gas: 1,023,314 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

191,360 BBL/mo

Di (annual)

972.9%

b-factor

1.0

EUR

1,473,087 BBL

R-squared

0.941

type

hyperbolic

Operator History (from monthly production reports)

2022-01 — 2026-07 MARATHON OIL EF LLC 55 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC322,0002021-11-23
5HMARATHON OIL EF LLC222,0002021-11-23
2HMARATHON OIL EF LLC322,0002021-11-22
3HMARATHON OIL EF LLC322,0002021-11-22
4HMARATHON OIL EF LLC222,0002021-11-22