RUBY 50

Oil // district 8 // lease#28180

op: SIMPSON OIL & LAND CO.

cum_oil

37k BBL

cum_gas

0 MCF

wells

1

production

1997-04 — 2021-04

peak_month

1997-08

-- production_history

cum_oil: 37,313 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,186 BBL/mo

Di (annual)

183.5%

b-factor

0.4

EUR

23,627 BBL

R-squared

0.939

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ENSERCH EXPLORATION, INC34,7002013-01-23
EOF // data source: Texas Railroad Commission // 2026