RICHARDS, D.E. "D"

Oil · District 10 · Lease #24861

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

199k BBL

Cum Gas

0 MCF

Wells

4

Production

1993-01 — 2026-03

Peak Month

2013-05

Production History

Cum Oil: 199,428 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

5,324 BBL/mo

Di (annual)

209.6%

b-factor

1.2

EUR

189,269 BBL

R-squared

0.803

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PARSLEY ENERGY OPERATIONS, LLC111,8002016-03-14
3PARSLEY ENERGY OPERATIONS, LLC113,0002013-01-22
2PARSLEY ENERGY OPERATIONS, LLC113,0002012-10-30
1PARKER & PARSLEY, INC.19,0001977-10-24
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