Drip gases, and liquid hydrocarbons produced from tar sands, oil sands, gilsonite, and oil shale. Liquids produced at natural gas processing plants are excluded. Crude oil is refined to produce a wide array of petroleum products, including heating oils; gasoline, diesel and jet fuels; lubricants; asphalt; ethane, propane, and butane; and many other products used for their energy or chemical content.
Measure 91 was the third initiative seeking to legalize marijuana for recreational use in Oregon; previous measures were 1986's Measure 5 and 2012's Measure 80 while medical use of marijuana was legalized in Oregon in 1998. Measure 91 passed by approximately 56% to 44%.
Washington and Colorado became the first two states to legalize recreational use of marijuana for adults in 2012, followed by handful of other states since. The potential effect of legalizing marijuana for recreational use has been a topic of considerable debate.