GEORGETOWN, Aug 26 (Reuters) - An Exxon Mobil

consortium's crude output in Guyana has been fully restored at

two floating production facilities after workers completed a

natural gas pipeline tie-in, a company spokesperson said on

Monday.

Output had fallen to between 400,000 and 500,000 barrels

per day from July 2 through the end of the month, government

data showed, a sign that planned work on the floating production

storage and offloading (FPSO) facilities had begun.

Oil production was at 669,000 barrels per day as of June 30,

the official data showed.

"We safely executed shutdowns of the Liza Unity and Destiny

FPSOs to facilitate pipeline tie-ins for the gas-to-energy

project," the spokesperson said by email. "Both FPSOs are back

online at full production levels."

Exxon said earlier this year it would shut two offshore oil

production vessels in Guyana for two weeks each between July and

August to connect a natural gas pipeline that would feed planned

onshore power plant and gas-processing facilities.

Oil output at one of Exxon's FPSOs was halted from July

2-15, while the second FPSO suspended operations on July 19-31.

The consortium's third facility was unaffected, the data showed.

The associated production volumes were deferred, not

lost, Exxon said.

The Exxon-led consortium, which includes Hess

and CNOOC Ltd, is responsible for all production in

the South American nation.