DCE LAND SERVICES DeltaCore Energy's chief ventures are in Complete Petroleum Land Services, including, but not limited to, the following: Oil and Gas Lease Acquisition Lease Maintenance Determination of Mineral Ownership Determination of Leasehold Ownership Title Research Title Curative Services Tract and Lease Mapping Well and Unit Mapping Mineral and Production Histories Surface Use and Disposal Agreements Damage Settlements Local, State, and Federal Regulatory Service Due Diligence Research Instrument Imaging & Data Management ​Oklahoma Corporation Commission Work