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Regulatory and Rate Matters (Tables)

3 Months Ended

Mar. 31, 2021

Regulated Operations [Abstract]

Schedule of Rate Increases for Transmission Costs

The following sets forth TNMP’s recent interim transmission cost rate increases:

Effective Date						Approved Increase in Rate Base						Annual Increase in Revenue
						(In millions)
March 27, 2020						59.2						7.8
October 7, 2020						10.8						2.0
March 12, 2021						112.6						14.1

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