The phrase "and petroleum in a" is grammatically correct but incomplete, making it less usable in written English without additional context.
You can use it when discussing a topic related to petroleum, such as its role in a specific process or industry.
Example: "The report focused on the environmental impact of oil extraction and petroleum in a broader context of energy production."
Alternatives: "and oil in a" or "and fossil fuels in a".
They let off gas (I'm not kidding, they let off a constant stream of undetectable fumes) and they're made from petroleum in a complicated process that creates major toxic waste.
This process leaves the improved petroleum in a top layer and a toxic sludge underneath.
Expectations of benefits from lignocellulosic biofuels for food security and energy security are based on the assumption that lignocellulose will/can (eventually) replace current use of food crops for biofuels without itself clashing with food priorities, and reduce use of petroleum in an age where demand is forecast to increase due to population growth and development.
Metalworking fluids may be pure petroleum oils ("straight oils"), emulsions of petroleum in a water base (semisynthetic fluids), or emulsions of synthetic oils in water (synthetic fluids).
Next, geologists and petroleum engineers huddle in a "hive," a 3-D imaging room, to identify promising geological formations and plan the trajectory of the well.
Trained geologist and geochemist started trading chemicals, crude oil and petroleum products in 1966 on a wholesale and retail basis.
His father is a senior vice president and the general counsel of Crown Central Petroleum in Baltimore, a refiner and an operator of gasoline stations.
This test method provides rapid measurement of total sulfur in petroleum and petroleum products with a minimum of sample preparation.
Neutron moisture gauges use californium-252 to find water and petroleum layers in oil wells, as a portable neutron source for gold and silver prospecting for on-the-spot analysis, and to detect ground water movement.
In 2007, natural gas displaced 250 million gallons of petroleum in vehicles.
