SHEFFIELD ESTATE OIL UNIT NO. 1

Oil // district 6 // lease#12479

op: KALOS CORPORATION

cum_oil

21k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2006-08

peak_month

1993-03

-- production_history

cum_oil: 21,114 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

275 BBL/mo

Di (annual)

19.6%

b-factor

0.0

EUR

16,757 BBL

R-squared

0.568

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1KALOS CORP.27,8001988-08-24
EOF // data source: Texas Railroad Commission // 2026