The order issued by the State Oil and Gas Board shall be fair and reasonable under all of the circumstances and shall protect the rights of interested parties and shall include:
(e) A provision that the costs and expenses of unit operation, including investment past and prospective, shall be borne by the owner or owners (not entitled to share in production free of operating costs and who in the absence of unit operation would be responsible for the expenses of developing and operating) of each tract in the same proportion that such tracts share in unit production. Each owner's interest in the unit area shall be responsible for his proportionate share thereof, and the unit operator shall have a lien thereon to secure payment of such share. When any owner fails to pay his part thereof when due and interest thereon at the legal rate, then all of such owner's interest in the unit production and equipment may be foreclosed in the same manner and under the same procedures provided for the foreclosure of mortgages in chancery court. A transfer or conversion of any owner's interest or any portion thereof, however accomplished after the effective date of the order creating the unit, shall not relieve the transferred interest of said operator's lien on said interest for the cost and expense of unit operations, past or prospective.