California Code, Code of Civil Procedure - CCP § 697.750

Notwithstanding Section 697.740, except as provided in Section 9617 of the Commercial Code and in Section 701.630, if (1) growing crops, (2) timber to be cut, or (3) minerals or the like (including oil or gas) to be extracted or accounts receivable resulting from the sale thereof at wellhead or minehead are subject to an execution lien and are transferred or encumbered, the property remains subject to the execution lien after the transfer or encumbrance.