GREATHOUSE

Oil // district 10 // lease#28780

op: PIONEER NATURAL RES. USA, INC.

cum_oil

16k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2003-09

peak_month

1996-07

-- production_history

cum_oil: 16,497 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

164 BBL/mo

Di (annual)

13.3%

b-factor

0.0

EUR

14,699 BBL

R-squared

0.548

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HCW EXPLORATION, INC.19,5001983-11-22
EOF // data source: Texas Railroad Commission // 2026