74 RANCH-GUAJILLO UNIT D

Oil · District 01 · Lease #20579

Operator: MARATHON OIL EF LLC

Cum Oil

753k BBL

Cum Gas

707k MCF

casinghead

Wells

4

Production

2022-03 — 2026-04

Peak Month

2022-08

Production History

Cum Oil: 753,108 BBL Cum Gas: 706,713 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

75,390 BBL/mo

Di (annual)

472.9%

b-factor

1.0

EUR

1,048,830 BBL

R-squared

0.818

type

hyperbolic

Operator History (from monthly production reports)

2022-03 — 2026-07 MARATHON OIL EF LLC 53 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC122,0002022-02-01
4HMARATHON OIL EF LLC122,0002022-02-01
2HMARATHON OIL EF LLC122,0002022-01-31
3HMARATHON OIL EF LLC122,0002022-01-31