HEDTKE-ANZALDUA UNIT

Oil · District 02 · Lease #10006

Operator: MARATHON OIL EF LLC

Cum Oil

517k BBL

Cum Gas

586k MCF

casinghead

Wells

2

Production

2012-04 — 2026-04

Peak Month

2020-05

Production History

Cum Oil: 516,869 BBL Cum Gas: 585,593 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

13,537 BBL/mo

Di (annual)

106.1%

b-factor

0.5

EUR

295,160 BBL

R-squared

0.396

type

hyperbolic

Operator History (from monthly production reports)

2012-04 — 2026-07 MARATHON OIL EF LLC 172 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC122,0002019-05-29
1HMARATHON OIL EF LLC118,3312012-02-21