COWDEN "F"

Oil · District 10 · Lease #35411

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

581k BBL

Cum Gas

0 MCF

Wells

15

Production

1997-06 — 2026-03

Peak Month

2014-09

Production History

Cum Oil: 581,386 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

7,819 BBL/mo

Di (annual)

38.7%

b-factor

0.2

EUR

302,211 BBL

R-squared

0.748

type

hyperbolic

Wells (15)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
15PIONEER NATURAL RES. USA, INC.111,9502013-12-04
13PIONEER NATURAL RES. USA, INC.111,9502013-11-19
14PIONEER NATURAL RES. USA, INC.111,9502013-11-19
12PIONEER NATURAL RES. USA, INC.111,8502013-09-03
7PIONEER NATURAL RES. USA, INC.112,1002013-07-23
11PIONEER NATURAL RES. USA, INC.111,7002012-04-12
10PIONEER NATURAL RES. USA, INC.111,7002012-02-21
9PIONEER NATURAL RES. USA, INC.110,5002003-09-08
6PIONEER NATURAL RES. USA, INC.110,5002003-08-15
8PIONEER NATURAL RES. USA, INC.110,5002003-08-15
5PIONEER NATURAL RES. USA, INC.110,6001997-11-06
2PARKER & PARSLEY DEVELOPMENT L.P210,5001997-05-13
1PARKER & PARSLEY DEVELOPMENT L.P210,6001997-04-09
3PARKER & PARSLEY DEVELOPMENT L.P19,2001997-03-11
4PARKER & PARSLEY DEVELOPMENT L.P19,2001997-03-11
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