July 18 (Reuters) - U.S. energy company Sempra's ( SRE )

Sempra Infrastructure unit said on Thursday it signed a

fixed-price agreement with Bechtel Energy to build the second

phase of the Port Arthur liquefied natural gas (LNG) export

plant in Texas.

Under the terms of agreement, Bechtel will handle detailed

engineering, procurement, construction, commissioning, startup,

performance testing, and operator training for the project.

The agreement also allows for pre-final investment decision

work to enhance project cost and schedule certainty.

In September 2023, the Port Arthur LNG Phase 2 project

received authorization from the Federal Energy Regulatory

Commission and is expected to include two liquefaction trains

capable of producing approximately 13 million tonnes per annum

(MTPA) of LNG.

This would increase the facility's total liquefaction

capacity from around 13 MTPA to up to 26 MTPA.

Last month, Sempra ( SRE ) signed a non-binding agreement with Saudi

Aramco to supply liquefied natural gas from Phase 2 of

the Port Arthur project, the companies said.