The obligation or liability of each lessee in the several separately owned tracts for the payment of unit expense at all times is several and not joint or collective and a lessee of the oil or gas rights in the separately owned tract is not chargeable with, obligated, or liable, directly or indirectly, for more than the amount apportioned, assessed, or otherwise charged to his or her interest in the separately owned tract pursuant to the plan of unitization.
MCL 324.61719