March 6 (Reuters) - Canadian oil and gas pipeline firm

TC Energy ( TRP ) said on Wednesday it has laid off some of its

workers as part of a previously announced plan to integrate its

natural gas pipeline units.

The workforce reductions would primarily impact people

working in Calgary and Houston, the company said in a statement

to Reuters.

The Calgary, Alberta-based company did not specify the

number of employees it would let go.

According to a regulatory filing, its principal operating

unit TCPL had 2,635 employees in Calgary and 837 in Houston as

of Dec. 31.

TC Energy ( TRP ) is undergoing an overhaul and had said last year

it would spin off its liquids business to focus on transporting

natural gas.

Its long-term debt had reached C$49.98 billion ($36.97

billion) as of Dec. 31 as it grapples with high costs at its

Coastal GasLink pipeline in British Columbia.

In January, rival Enbridge ( ENB ) had said it would lay

off 650 individuals. The company said it had completed 500 job

cuts so far on Wednesday.

($1 = 1.3518 Canadian dollars)