“Researchers at the agency’s Jet Propulsion Laboratory (JPL) replicated the harsh and frigid conditions on Titan. They showed how even minor fluctuations in air pressure, temperature and composition of air can result in nitrogen separating quickly from the solution. This is akin to the fizz which one can espy when a soda bottle is opened.
Per the lead author of the study Michael Malaska, the experiment revealed that when both methane- and ethane-rice liquids were mixed, the nitrogen was able to remain in the solution. The release of nitrogen is called exsolution.”
Planetary formation processes produce methane and ethane, major components of Natural Gas. So if you still think dinosaurs or decaying organic matter is necessary for oil/gas on earth you are probably wrong.
Within the mantle, carbon may exist as hydrocarbons—chiefly methane—and as elemental carbon, carbon dioxide, and carbonates. The abiotic hypothesis is that the full suite of hydrocarbons found in petroleum can either be generated in the mantle by abiogenic processes, or by biological processing of those abiogenic hydrocarbons, and that the source-hydrocarbons of abiogenic origin can migrate out of the mantle into the crust until they escape to the surface or are trapped by impermeable strata, forming petroleum reservoirs.
Abiogenic hypotheses generally reject the supposition that certain molecules found within petroleum, known as biomarkers, are indicative of the biological origin of petroleum. They contend that these molecules mostly come from microbes feeding on petroleum in its upward migration through the crust, that some of them are found in meteorites, which have presumably never contacted living material, and that some can be generated abiogenically by plausible reactions in petroleum.