(Adds details on gold sector, energy deal, economic data;
updates prices)
* TSX falls 39.75 points, or 0.28 percent, at 14,191.31
* Half of TSX's 10 main groups fall
TORONTO, July 7 (Reuters) - Canada's main stock index
slipped on Thursday as gold miners retreated following their
sharp rally since Britain's vote to leave the European Union.
Gains in shares of energy companies and financials helped
limit the fall, although oil price gains came with warnings
about oversupply, and global growth concerns linger. O/R
MKTS/GLOB
At 10:37 a.m. EDT (1437 GMT), the Toronto Stock Exchange's
S&P/TSX composite index .GSPTSE was down 39.75 points, or 0.28
percent, at 14,191.31.
Weighing on the index were its hefty gold mining group,
which pulled back following a steady rise since the Brexit vote
sideswiped financial markets in late June.
The most influential weights included two of the world's
largest producers, with Barrick Gold Corp ABX.TO down 4.1
percent to C$28.81 and Goldcorp Inc G.TO off 2.4 percent at
C$25.46.
The S&P/TSX Global Gold sub-index .SPTTGD had rallied more
than 20 percent since the vote, as investors rushing to buy
bullion amid economic uncertainty pushed the metal to a two-year
high. GOL/
The materials group, which includes precious and base metals
miners and fertilizer companies, lost 2.2 percent.
Half of the index's 10 main groups were in negative
territory, and advancing and declining stocks were fairly evenly
split.
Influential gainers on the index included Toronto-Dominion
Bank TD.TO , which rose 0.4 percent to C$55.03, and Manulife
Financial Corp MFC.TO , which advanced 1.3 percent to C$17.07.
Seven Generations Energy Ltd VII.TO advanced 8.1 percent
to C$27.12 after agreeing to buy some Deep Basin oil and gas
properties from Paramount Resources Ltd POU.TO .
Paramount advanced 15.2 percent to C$12.60.
The energy group climbed 0.5 percent while financials were
up 0.3 percent.
Canada's banking regulator said it is tightening oversight
of mortgage lending, citing concerns about record household debt
levels and a sharp jump in house prices in some markets.
The value of Canadian building permits issued in May dropped
1.9 percent from April, in part due to sharply weaker
construction intentions in energy-producing Alberta, Statistics
Canada said.
The pace of purchasing activity in Canada picked up in June
as measures of employment and inventories jumped, according to
Ivey Purchasing Managers Index data.