* TSX ends down 0.4% at 33,856.62

* Energy falls 1.4% as oil settles 0.3% lower

* Materials group loses 0.8%, with Nutrien ( NTR ) down 7.5%

* Technology rises 1.8%

(Updates at market close)

By Fergal Smith

May 7 (Reuters) - Canada's main stock index fell on

Thursday as investors locked in some recent gains ahead of U.S.

and Canadian jobs data, with energy shares among the biggest

decliners.

The Toronto Stock Exchange's S&P/TSX composite index

ended down 125.20 points, or 0.4%, at 33,856.62, after

notching on Wednesday its highest closing level in more than two

weeks.

"Everybody's got one eye on the war, one eye on corporate

earnings and I guess if you had a third eye it would be on the

jobs data released tomorrow," said Allan Small, senior

investment advisor of the Allan Small Financial Group with iA

Private Wealth.

"A lot of investors, perhaps, are just taking a little bit

of profit ahead of the jobs number."

Both the U.S. and Canada are due to release monthly

employment data on Friday. Economists have forecast Canada's

economy adding 15,000 jobs in April and the unemployment rate

remaining at 6.7%.

The United States and Iran are edging toward a temporary

agreement to halt their war, sources and officials said, with

Tehran reviewing a proposal that would stop the fighting but

leave the most contentious issues unresolved.

The energy sector fell 1.4% as the price of oil

settled 0.3% lower at $94.81 a barrel in volatile

trading.

Canada's oil sands have significant expansion potential, but

the basin's long-term growth outlook is dependent on the

construction of a new crude export pipeline to the Pacific

coast, the president of Canadian Natural Resources ( CNQ )

said.

Canadian Natural's shares ended 2.1% lower, while shares

of Nutrien ( NTR ) were down 7.5% even as the company reported

a rise in first-quarter profit, benefiting from higher sales and

prices across its fertilizer segments.

The materials group, which includes fertilizer

companies and metal mining shares, fell 0.8%. Industrials

lost 0.9%.

Among the bright spots was technology. It rose 1.8%, with

shares of e-commerce company Shopify Inc clawing back

some of this week's steep declines to end 5.8% higher.