74 RANCH UNIT S1

Oil · District 01 · Lease #20450

Operator: MARATHON OIL EF LLC

Cum Oil

1.3M BBL

Cum Gas

1.0M MCF

casinghead

Wells

5

Production

2021-04 — 2026-04

Peak Month

2021-08

Production History

Cum Oil: 1,287,635 BBL Cum Gas: 1,046,984 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

108,878 BBL/mo

Di (annual)

521.0%

b-factor

1.1

EUR

1,691,808 BBL

R-squared

0.760

type

hyperbolic

Operator History (from monthly production reports)

2021-04 — 2026-07 MARATHON OIL EF LLC 64 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC122,0002019-10-09
2HMARATHON OIL EF LLC122,0002019-10-09
3HMARATHON OIL EF LLC122,0002019-10-09
4HMARATHON OIL EF LLC122,0002019-10-09
5HMARATHON OIL EF LLC222,0002019-10-09