cap and trade (copy)

Oil companies are among the companies, utilities and investors registered to participate in Washington’s cap-and-trade auctions.

OLYMPIA — Washington’s first cap-and-trade auction was more lucrative for government accounts than pre-auction projections by the Department of Ecology.

Some 6.18 million carbon allowances sold for $48.50 each, Ecology announced Tuesday, one week after the auction. Ecology estimated in January allowances would sell for about $32.

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