In this subchapter:
(1) "Payee" means any person or persons legally entitled to payment from the proceeds derived from the sale of oil or gas from an oil or gas well located in this state.
(2) "Payor" means the party who undertakes to distribute oil and gas proceeds to the payee, whether as the purchaser of the production of oil or gas generating such proceeds or as operator of the well from which such production was obtained or as lessee under the lease on which royalty is due. The payor is the first purchaser of such production of oil or gas from an oil or gas well, unless the owner of the right to produce under an oil or gas lease or pooling order and the first purchaser have entered into arrangements providing that the proceeds derived from the sale of oil or gas are to be paid by the first purchaser to the owner of the right to produce who is thereby deemed to be the payor having the responsibility of paying those proceeds received from the first purchaser to the payee.
(3) "Division order" means an agreement signed by the payee directing the distribution of proceeds from the sale of oil, gas, casinghead gas, or other related hydrocarbons. The order directs and authorizes the payor to make payment for the products taken in accordance with the division order. When used herein "division order" shall also include "transfer order".
(4) "Transfer order" means an agreement signed by a payee and his transferee (new payee) directing the payor under the division order to pay another person a share in the oil or gas produced.