J.W. COOKE UNIT 1

Oil // district 6 // lease#15275

op: R. LACY SERVICES, LTD.

cum_oil

36k BBL

cum_gas

0 MCF

wells

1

production

2013-09 — 2026-03

peak_month

2015-08

-- production_history

cum_oil: 35,939 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,136 BBL/mo

Di (annual)

346.7%

b-factor

0.6

EUR

25,991 BBL

R-squared

0.726

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5R. LACY SERVICES, LTD.310,1002013-07-29
EOF // data source: Texas Railroad Commission // 2026