(Updates at market close)

* TSX ends down 0.2% at 33,891.18

* Energy declines 1.1% as oil settles nearly 3% lower

* Materials group loses 1.1% as gold dips

* Badger Infrastructure jumps 19.3% on Q1 revenue beat

By Tharuniyaa Lakshmi and Fergal Smith

TORONTO, May 1 (Reuters) - Canada's main stock index

dipped on Friday, leaving it barely changed for the week, as

losses for resource shares offset gains for technology, and

investors weighed prospects of diplomatic progress in the Iran

war.

The Toronto Stock Exchange's S&P/TSX Composite Index

ended down 73.15 points, or 0.2%, at 33,891.18. For

the week, the index inched 0.04% lower, while it has advanced

6.9% since the start of the year.

Tehran has submitted its latest proposal for negotiations

with the United States, Iranian state media and a Pakistani

official said, a move that could offer hope for breaking a

deadlock in efforts to end the Iran war.

"There's going to be a lot of uncertainty until the tensions

kind of die down," said Webull Canada CEO Michael Constantino.

The conflict has spurred inventory building in Canada's

manufacturing sector, leading to the sector expanding in April

at its fastest pace in nearly four years.

Energy fell 1.1% as oil gave back some recent

gains. U.S. crude oil futures settled nearly 3% lower at

$101.94 a barrel.

Imperial Oil ( IMO ) missed analysts' estimates for

first-quarter profit, as weaker crude realizations and unplanned

outages at its facilities reduced refinery throughput. The oil

producers' shares fell 4%.

The materials group, which includes metal mining

shares, lost 1.1% as the price of gold edged lower.

Three of the 10 major sectors ended higher, including

technology. It rose 1.9%, with shares of e-commerce

company Shopify Inc ( SHOP ) up 5.2%.

Badger Infrastructure Solutions Ltd ( BDGIF ) was a

standout. Its shares jumped 19.3% after the excavating firm

reported first-quarter revenue that beat estimates.

(Reporting by Fergal Smith in Toronto and Tharuniyaa Lakshmi in

Bengaluru; editing by Joyjeet Das)