Okla. Admin. Code § 165:10-1-21
Any well to be drilled or drilled for oil or gas to an unspaced common source of supply the top of which is 2,500 feet or more in depth shall be located not less than 330 feet from any property line or lease line, and shall be located not less than 600 feet from any other producible or drilling oil or gas well when drilling to the same common source of supply; provided and except that in drilling to an unspaced common source of supply the top of which is less than 2,500 feet in depth, the well shall be located not less than 165 feet from any property line or lease line and not less than 300 feet from any other producible or drilling oil or gas well in the same common source of supply; provided, however, that the depth to the top of the common source of supply in the original or discovery well shall be recognized as the depth to the top of the common source of supply for the purpose of this Section; provided further, when an exception to this Section is granted, the Commission may adjust the allowable or take such other action as it deems necessary for the prevention of waste and protection of correlative rights. However, the above-described requirements for the distance between any such well to be drilled or drilled for oil or gas and any such other producible or drilling oil or gas well shall not apply if such wells are operated by the same operator, and notification to working interest owners in any such well to be drilled or drilled for oil or gas shall be indicated on the Form 1000 for such well.
Okla. Admin. Code § 165:10-1-21