A new, highly efficient material that converts heat into electricity may one day help cars get the most out of a gallon of gas, U.S. researchers said Thursday. Read more »

Oil prices fell to a six-week low Tuesday amid concerns over sliding U.S. energy demand and expectations that a hurricane pushing through the Gulf of Mexico would spare most offshore oil production. Read more »

Oil rose Monday as Tropical Storm Dolly barreled into the Gulf of Mexico, stoking concerns of disruptions to U.S. offshore oil and gas production. Read more »

Merrill Lynch & Co Thursday said it is selling close to $8 billion of assets in a bid to raise fresh capital and posted a $4.9 billion second-quarter loss because of write-downs. Read more »

Stocks ended mixed after a seesaw session Tuesday. Only the Nasdaq eked out a gain. Read more »

The U.S. Securities and Exchange Commission will issue an emergency rule later Tuesday to stop "naked" short selling in major financial firms, including Fannie Mae and Freddie Mac, the SEC said. Read more »

The head of the U.S. Federal Communications Commission said Friday he will recommend that the agency sanction Comcast Corp for unreasonably restricting Internet users who share movies and other material. Read more »

Summer weather, aggressive promotions and tax rebates sent many U.S. consumers shopping in June, giving retailers struggling in the weak economy their strongest month in more than a year. Read more »

Credit jitters swept Wall Street again on Wednesday and pushed a key market index back into bear territory as financial shares tumbled and the appeal of safe-haven government debt took a shine. Read more »

JPMorgan Chase Chief Executive Jamie Dimon Tuesday said investment banks are not too big to fail, and said the U.S. regulatory response to the credit crisis was appropriate. Read more »