- Anywhere we find petroleum was an ocean hundreds of millions of years ago.
- Plants and animals died, were buried by sand and slowly pressed into oil and gas hydrocarbons.

- Giant machines drill through the rock layers above the petroleum, then pumps suck the petroleum out of the ground.
Oil can be pumped on land or from under the ocean floor



Location of US Oil Wells matches ancient sea


Liquid petroleum can transported in pipes over long distances as well as in trucks, trains and ships.



- Not all countries in the world are on top of an ancient ocean, so distribution of petroleum isn’t equal.
- Current top producers:
- #1 – US
- #2 – Saudi Arabia
- #3 – Russia

- It requires millions of oil wells to pump all of the oil humans use and they aren’t exactly pretty.
- 100 years ago, Los Angeles valley was covered with oil wells (hardly a glamorous place for movie stars!).
- So they disguised the wells as fake buildings and art installations to keep making that money.




- While pipes are the most efficient way to move petroleum around, they can leak and spray into the environment.


- When offshore drilling rigs in the middle of the ocean experience a failure releasing crude oil directly into the ocean.
- In 2010, the Deepwater Horizon rig exploded and sank, breaking off the pipe over a mile below the waves releasing over 134 million gallons of oil until it was plugged 45 days later.





- Along with leaks from offshore rigs, oil tankers can leak into the ocean when their hull is punctured in an accident.
- Because oil is less dense than water, it forms a thin slick that devastates birds and mammals that contact the surface to breathe.
- In 1989, oil tanker named the Exxon Valdez ran aground and dumped over 10 million gallons along the Alaskan coastline.




- Petroleum accounts for 36% of all the energy consumed in the US.
- Grey sliver of pie chart

- The majority of petroleum is made into fuels like diesel and gasoline for transportation engines.

- US doesn’t use petroleum to generate electricity in large scale powerplants.
- Petroleum is primarily made into different fuels for small transport engines.
United States consumes the most petroleum in the world.

Mexico is the most reliant on petroleum with it accounting for over 40% of their energy.


What do you think about petroleum as an energy source?
What’s next?
I’m lost😱
Since this is lesson 1 of the energy unit, the only going back is to the Start Page…
I need practice 🤔
I think I get it, but would like some more practice!
Let’s move on👍
I’ve got Energy Forms under control, Let’s learn how they make everything work!