SIRES

Oil // district 11 // lease#63421

op: BYRD OPERATING COMPANY

fields: WELCH

cum_oil

182k BBL

cum_gas

0 MCF

wells

6

production

1993-01 — 2026-03

peak_month

1993-01

-- production_history

cum_oil: 182,035 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,070 BBL/mo

Di (annual)

8.5%

b-factor

0.4

EUR

195,315 BBL

R-squared

0.920

type

hyperbolic

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6LACY & BYRD, INC.15,0001984-08-31
5LACY & BYRD, INC.15,0001982-12-14
4LACY & BYRD, INC.15,0001982-07-16
3LACY & BYRD, INC.15,0001982-03-08
2LACY & BYRD, INC.15,0001981-09-08
1LACY & BYRD, INC.15,0001981-06-22
EOF // data source: Texas Railroad Commission // 2026