GWOSDZ A

Oil // district 2 // lease#10712

op: 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
EOF // data source: Texas Railroad Commission // 2026