The occurrence of rock oil. The oil rocks is caused by the accumulation and deposit of plant and animal carcasses as they fly their algae. Fish and other small animals under proper conditions water sources that contain oxygen co., Ltd. High temperature and press the override of crust over a period of millions of years. Make organic compounds in plant & animal carcasses, those changes as compounds khoe Rosa Jane. Mash mixture with sediment, dirt, sand, which is soft naenklai stone oil. Oil stones each source in the world, with over 600 million years of age – 3.
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