Cal. Public Utilities Code - PUC § 3051. Section 3051.
Three or more natural persons, all of whom are residents of this state, who are engaged in the production of gas within this state, may form an association pursuant to this chapter for the purpose of engaging in any activity in connection with any of the following:
(a)
The selling of gas produced by its members.
(b)
The storing, handling, transportation, or utilization of gas or the manufacturing or making of byproducts of gas.
(c)
The manufacturing, selling, or supplying to its members of machinery, equipment, or supplies directly related to the production, transmission, storage, or marketing of gas.
(d)
The financing of any activity specified in this section.
(e)
The representation of its members in bargaining and negotiations concerning any sale of gas to a third party, either pursuant to an existing contract or a new contract.