The Massachusetts Declaration of Election by Lessor to Convert Royalty Interest to Working Interest is a legal document that outlines the decision made by the lessor (landowner or mineral rights' holder) in Massachusetts to convert their existing royalty interest into a working interest in an oil or gas operation. This declaration signifies an important change in the contractual arrangement between the lessor and the lessee (oil or gas company). Keywords: Massachusetts, Declaration of Election, Lessor, Convert, Royalty Interest, Working Interest, Oil, Gas, Operation, Contractual Arrangement, lessee. In Massachusetts, there may be different types of declarations of election by the lessor to convert royalty interest to working interest depending on specific circumstances. These include: 1. Massachusetts Declaration of Election for Primary Lease Term Conversion: This type of declaration is used when the lessor decides to convert their royalty interest into a working interest during the primary lease term of the contract. This term typically refers to the initial phase of the lease agreement. 2. Massachusetts Declaration of Election for Extended Lease Term Conversion: When the lessor chooses to convert their royalty interest to a working interest during the extended lease term, this type of declaration is utilized. The extended lease term refers to the phase that comes after the primary lease term and allows for the continuation of oil or gas operations. 3. Massachusetts Declaration of Election for Partial Conversion: In certain cases, the lessor may opt for a partial conversion, converting only a portion of their royalty interest to a working interest. This declaration outlines the specific percentage or fraction of the interest being converted. 4. Massachusetts Declaration of Election for Complete Conversion: This type of declaration is employed when the lessor decides to convert their entire royalty interest into a working interest. It encompasses the transfer of all rights, responsibilities, and benefits associated with the royalty interest to the lessor. It is essential to consult with legal professionals specializing in Massachusetts oil and gas laws to ensure the correct type of declaration is used based on the specific circumstances and requirements of the lessor and lessee. The declaration must comply with the applicable statutes, regulations, and contractual obligations within the state of Massachusetts.