Illinois General Assembly - Illinois Compiled Statutes

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5 ILCS 615/19

(5 ILCS 615/19) (from Ch. 96 1/2, par. 5019)

Sec. 19.

After the issuance of any petroleum lease the lessee shall proceed
to develop the petroleum in the lands covered thereby through the drilling
of such wells as will efficiently extract the petroleum therefrom and such
development shall take into account the productiveness of the producing
horizon, the depth at which it occurs, the average cost of wells, the
market requirements obtaining at any given time, and the maintenance of
proper oil and gas ratios. The Department shall determine, either by rule
or regulation, or by inclusion in the terms of any lease, the rapidity and
extent of development of the oil, gas or other petroleum field embraced by
such lease.

(Source: Laws 1951, p. 1167.)