WINDHAM "Q"

Oil // district 9 // lease#13053

op: PIONEER NATURAL RES. USA, INC.

cum_oil

244k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2016-10

peak_month

2010-02

-- production_history

cum_oil: 243,713 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

4,056 BBL/mo

Di (annual)

72.5%

b-factor

2.0

EUR

508,570 BBL

R-squared

0.506

type

hyperbolic

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6PIONEER NATURAL RES. USA, INC.211,3002011-03-09
7PIONEER NATURAL RES. USA, INC.111,3002011-03-09
4PIONEER NATURAL RES. USA, INC.111,0002009-11-19
3PIONEER NATURAL RES. USA, INC.111,0002009-09-24
5PIONEER NATURAL RES. USA, INC.111,0002009-09-17
1PARKER & PARSLEY, LTD.19,3501991-02-22
2PARKER & PARSLEY, LTD.19,3501991-02-22
EOF // multi-state drilling data platform // 2026