GRANTHAM 50

Oil · District 10 · Lease #40756

Operator: DIAMONDBACK E&P LLC

Cum Oil

134k BBL

Cum Gas

0 MCF

Wells

2

Production

2010-11 — 2026-03

Peak Month

2012-06

Production History

Cum Oil: 133,621 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,406 BBL/mo

Di (annual)

119.5%

b-factor

0.7

EUR

91,242 BBL

R-squared

0.600

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2COBRA OIL & GAS CORPORATION212,0002012-02-15
1COBRA OIL & GAS CORPORATION412,0002011-03-17
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