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This website publishes administrative rules on their effective dates, as designated by the adopting state agencies, colleges, and universities.

Rule 1501:9-5-01 | Definitions.


(A) "Enhanced recovery" means any injection of natural gas, water, or other fluids approved by the division into an oil or gas reservoir to increase pressure or retard pressure decline in the reservoir for the purpose of increasing the recovery of oil or other hydrocarbons therefrom and shall include secondary or additional recovery operations. This is to include all thermal processes.

(B) "Input wells" means those wells into which natural gas, water, other fluids or gases are injected, or are to be injected, for the purpose of increasing pressure or retarding pressure decline in the reservoir.

(C) "Withdrawal wells" means those wells from which oil and/or gas is, or is to be, withdrawn.

(D) "Observation wells" means those wells used, or to be used, temporarily for observation and not for input or withdrawal.

(E) "Project owner" means the person who has the right to inject fluids on a subject tract or tracts and has the right to drill on a tract or drilling unit and to drill into and produce from a pool and to appropriate the oil or gas that he produces therefrom either for himself or for others.

(F) "Person" means any political subdivision, department, agency, or instrumentality of this state; the United States and any department, agency, or instrumentality thereof; and any legal entity defined as a person under section 1.59 of the Revised Code.

(G) "Chief" means chief, division of mineral resources management.

(H) "Division" means division of mineral resources management, Ohio department of natural resources.

(I) "Subject tract" means a tract upon which a person proposes to drill, reopen, deepen, plug back, or rework a well for the injection of fluids.

(J) "Well" means any borehole, whether drilled or bored, within the state, for production, extraction, or injection of any gas or liquid mineral, excluding potable water to be used as such, but including natural or artificial brines and oil field waters.

(K) "Existing well" means any well for which a drilling permit was issued by the division prior to June 1, 1982.

(L) "Saltwater" means any and all nonpotable water resulting, obtained, or produced from the exploration, drilling, or production of oil or gas.

(M) "Barrel" means a quantity of liquid equal to forty-two U.S. gallons.

(N) "Mg/L" means milligrams per liter.

Supplemental Information

Authorized By: 1509.01
Amplifies: 1509.01
Five Year Review Date: 10/13/2025
Prior Effective Dates: 11/6/1967, 6/1/1982