COX "21"

Oil // district 9 // lease#15826

op: PURE RESOURCES, L.P.

cum_oil

5k BBL

cum_gas

0 MCF

wells

1

production

2005-09 — 2006-08

peak_month

2005-09

-- production_history

cum_oil: 4,977 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,442 BBL/mo

Di (annual)

974.3%

b-factor

1.6

EUR

33,102 BBL

R-squared

0.936

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PURE RESOURCES, L.P.210,0002006-02-22
EOF // data source: Texas Railroad Commission // 2026