WINTER

Oil · District 10 · Lease #40713

Operator: NORTHSTAR OPERATING COMPANY

Cum Oil

285k BBL

Cum Gas

0 MCF

Wells

9

Production

2010-12 — 2026-03

Peak Month

2012-11

Production History

Cum Oil: 285,246 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

7,150 BBL/mo

Di (annual)

90.3%

b-factor

0.9

EUR

322,308 BBL

R-squared

0.962

type

hyperbolic

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9BLACKBEARD OPERATING, LLC16,0002017-12-20
8NORTHSTAR OPERATING COMPANY15,2002013-12-05
7NORTHSTAR OPERATING COMPANY15,2002013-03-08
6NORTHSTAR OPERATING COMPANY15,2002012-09-12
5NORTHSTAR OPERATING COMPANY15,0002012-01-24
4NORTHSTAR OPERATING COMPANY15,0002011-07-13
1NORTHSTAR OPERATING COMPANY39,5002011-06-15
3NORTHSTAR OPERATING COMPANY15,0002010-11-03
2NORTHSTAR OPERATING COMPANY16,5002010-03-30
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