The fundamentals of oil and gas law and commonly created interests in oil and gas, as well as the lands from where it is extracted, with an emphasis on the oil and gas lease; rights and obligations created thereby; rights and duties between mineral and surface owners; and protection of interests in oil and gas properties against trespassers and wrongful claimants. Also includes state regulation of drilling and production. Two, three, or four lecture hours a week for one semester. Law 179M, 279M, 379M, 479M, 579M, 679M (Topic: Oil and Gas Leasing and Regulation) and Law 290D, 390D, 490D may not both be counted.