BECK UNIT

Oil · District 01 · Lease #15693

Operator: MARATHON OIL EF LLC

Fields: EAGLEVILLE (EAGLE FORD-1)

Cum Oil

148k BBL

Cum Gas

50k MCF

casinghead

Wells

1

Production

2011-12 — 2026-04

Peak Month

2012-03

Production History

Cum Oil: 147,563 BBL Cum Gas: 50,102 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,474 BBL/mo

Di (annual)

439.3%

b-factor

1.0

EUR

125,184 BBL

R-squared

0.617

type

hyperbolic

Operator History (from monthly production reports)

2022-09 — 2026-07 ALVARADO 2014 LLC 47 mo

2016-06 — 2022-08 EARTHSTONE OPERATING, LLC 75 mo

2011-12 — 2016-05 MARATHON OIL EF LLC 54 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1H	42-013-34428	ALVARADO 2014 LLC	1	15,500	2011-09-21