(1) production of oil and/or gas in such quantities that each landowner whose property overlies a producing formation will be able to recover an equitable share of the oil and/or gas originally in place beneath his land. (2) production in accordance with allowables set by a state regulatory commission. (3) in some states, common carriers (q.v.) And common purchasers of gas and oil are prohibited from discriminating in favor of one supplier over another.