HORTON, R.P. -A-

Oil // district 1 // lease#12394

op: WELHAUSEN OPERATING COMPANY, LP

cum_oil

207k BBL

cum_gas

0 MCF

wells

9

production

1993-01 — 2026-03

peak_month

2007-11

-- production_history

cum_oil: 206,843 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,954 BBL/mo

Di (annual)

32.1%

b-factor

0.1

EUR

81,172 BBL

R-squared

0.746

type

hyperbolic

-- wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
A 7WELHAUSEN OPERATING COMPANY, LP212,0002008-11-13
A 5WELHAUSEN OPERATING COMPANY, LP110,0002006-08-24
A 4WELHAUSEN OPERATING COMPANY, LP19,8002004-10-07
3WELHAUSEN OPERATING CO., INC.111,5531995-07-10
A 3WELHAUSEN OPERATING CO., INC.111,5531995-07-10
2WELHAUSEN OPERATING CO., INC.19,6001990-11-01
A 2WELHAUSEN OPERATING CO., INC.19,6001990-11-01
1WELHAUSEN OPERATING CO., INC.19,5001990-01-15
A 1WELHAUSEN OPERATING CO., INC.19,5001990-01-15
EOF // data source: Texas Railroad Commission // 2026