1.   But the issue of market concentration has become a key one in the pending oil mergers.

2.   He noted in particular that the spate of oil mergers in recent years was reaching the point that requires particularly careful scrutiny.

3.   He said that the commission forced the sale of gasoline stations in past oil industry mergers.

4.   She proposed instead to place a moratorium on oil company mergers until the volatility in the price of oil eases.

5.   Some consumer activists were surprised by the decision, noting that the FTC has recently approved several large oil industry mergers.

6.   The deal is the largest oil industry merger ever, as well as the largest foreign takeover of an American company.

7.   Oil industry mergers have brought down expenses, she said.

8.   Stock markets in Asia and Europe advanced Thursday, as Japanese investors awaited economic stimulus measures and the European markets percolated with rumors of a big oil merger.

9.   Stocks percolate with rumors of oil merger.