GWOSDZ A

Oil · District 2 · Lease #10712

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

2.8M BBL

Cum Gas

0 MCF

Wells

13

Production

2011-08 — 2026-03

Peak Month

2017-02

Production History

Cum Oil: 2,756,554 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

427,739 BBL/mo

Di (annual)

874.2%

b-factor

0.9

EUR

2,874,370 BBL

R-squared

0.892

type

hyperbolic

Wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12HBHP BILLITON PET(TXLA OP) CO114,0002016-05-24
13HBHP BILLITON PET(TXLA OP) CO114,0002016-05-24
10HBHP BILLITON PET(TXLA OP) CO114,0002015-07-16
11HBHP BILLITON PET(TXLA OP) CO114,0002015-07-16
2HBHP BILLITON PET(TXLA OP) CO114,0002015-03-19
3HBHP BILLITON PET(TXLA OP) CO114,0002015-03-17
6HBHP BILLITON PET(TXLA OP) CO114,0002015-03-17
7HDEVON ENERGY PRODUCTION CO, L.P.214,0002015-03-17
4HBHP BILLITON PET(TXLA OP) CO114,0002015-03-16
5HBHP BILLITON PET(TXLA OP) CO114,0002015-03-16
8HBHP BILLITON PET(TXLA OP) CO114,0002015-03-16
9HDEVON ENERGY PRODUCTION CO, L.P.214,0002015-03-16
1HPETROHAWK OPERATING COMPANY213,0002013-11-25
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