| petroleum product | 19.49 | Prices rose for petroleum products. | ||
| petroleum company | 6.91 | Higher oil prices fed earnings growth at petroleum companies. | ||
| petroleum price | 6.12 | Petroleum prices dropped. | ||
| petroleum industry | 5.40 | In other words, the petroleum industry had no standing to sue. | ||
| petroleum gas | 4.08 | ...a truck carrying liquefied petroleum gas. | ||
| petroleum reserve | 2.04 | But by hoarding its petroleum reserves, Iraq ranks second in the world. | ||
| petroleum stock | 1.38 | Petroleum stocks also fell. | ||
| petroleum market | 1.32 | In petroleum markets, crude oil was little changed. | ||
| petroleum sector | 1.32 | After the war, he guided the petroleum sector of the Marshall Plan. | ||
| petroleum engineer | 0.99 | Just ask William Turner, a retired petroleum engineer. | ||
| petroleum complex | 0.92 | After a weak start, the petroleum complex rebounded. | ||
| petroleum exploration | 0.92 | Petroleum exploration and metal mining remain strong. | ||
| petroleum future | 0.92 | Other petroleum futures were little changed. | ||
| petroleum import | 0.92 | Nearly half of the increase stemmed from petroleum imports. | ||
| petroleum refinery | 0.92 | Aran has said the site is suitable for a petroleum refinery or other large industrial plant. | ||
| petroleum supply | 0.86 | The interdiction of oil tankers will not cut off petroleum supplies to Serbia. | ||
| petroleum export | 0.79 | The project is part of a multi-billion dollar effort by Algeria to increase its petroleum exports. | ||
| petroleum production | 0.79 | His alliances with his brothers in petroleum production, Saddam Hussein and Moammar Gadhafi? | ||
| petroleum site | 0.79 | Petroleum storage sites were bombed at Leskovac, Bor and Prahovo. | ||
| petroleum facility | 0.72 | Canadian planes attacked an explosives plant and a petroleum facility in Serbia early Thursday. |