SAN CHRISTOVAL RANCH UNIT B

Oil · District 02 · Lease #11275

Operator: MARATHON OIL EF LLC

Cum Oil

681k BBL

Cum Gas

2.9M MCF

casinghead

Wells

9

Production

2016-09 — 2026-04

Peak Month

2016-10

Production History

Cum Oil: 680,989 BBL Cum Gas: 2,874,609 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

40,899 BBL/mo

Di (annual)

240.9%

b-factor

0.6

EUR

480,834 BBL

R-squared

0.818

type

hyperbolic

Operator History (from monthly production reports)

2016-09 — 2026-07 MARATHON OIL EF LLC 119 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8HMARATHON OIL EF LLC122,0002019-02-07
5HMARATHON OIL EF LLC220,0002018-02-07
6HMARATHON OIL EF LLC220,0002018-02-07
7HMARATHON OIL EF LLC120,0002018-02-07
4HMARATHON OIL EF LLC120,0002018-01-12
2HMARATHON OIL EF LLC118,6002016-04-26
3HMARATHON OIL EF LLC118,6002016-04-26
502HMARATHON OIL EF LLC118,6002016-04-26
503HMARATHON OIL EF LLC118,6002016-04-26