CASSIDY "B"

Oil · District 10 · Lease #33034

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

107k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2026-03

Peak Month

2012-07

Production History

Cum Oil: 107,492 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,248 BBL/mo

Di (annual)

62.8%

b-factor

0.7

EUR

58,706 BBL

R-squared

0.309

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DDPIONEER NATURAL RES. USA, INC.114,0002017-11-16
2PIONEER NATURAL RES. USA, INC.111,6502012-01-30
1PARKER & PARSLEY, LTD.19,3501990-11-16
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