RETZLOFF-CHAPMAN UNIT

Oil · District 2 · Lease #10196

Operator: MARATHON OIL EF LLC

Cum Oil

613k BBL

Cum Gas

0 MCF

Wells

3

Production

2012-07 — 2026-03

Peak Month

2012-09

Production History

Cum Oil: 613,096 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

24,335 BBL/mo

Di (annual)

82.0%

b-factor

0.4

EUR

585,540 BBL

R-squared

0.757

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HMARATHON OIL EF LLC115,0002012-05-16
1HMARATHON OIL EF LLC115,0002012-05-11
2HMARATHON OIL EF LLC115,0002012-05-11
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