HARTMAN UNIT

Oil · District 2 · Lease #9979

Operator: MARATHON OIL EF LLC

Cum Oil

1.7M BBL

Cum Gas

0 MCF

Wells

5

Production

2012-03 — 2026-03

Peak Month

2014-06

Production History

Cum Oil: 1,693,309 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

91,148 BBL/mo

Di (annual)

183.6%

b-factor

0.7

EUR

1,655,932 BBL

R-squared

0.965

type

hyperbolic

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HMARATHON OIL EF LLC119,2002013-12-19
3HMARATHON OIL EF LLC117,5002013-12-19
4HMARATHON OIL EF LLC117,8002013-12-16
5HMARATHON OIL EF LLC117,5002013-12-16
1HMARATHON OIL EF LLC115,8002011-12-19
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