Crossword Challenges, Word Search Fun, Trivia and Hidden Messages, All In One!
Clue Search Puzzles - Millions of Free Puzzles Downloaded!
Home Puzzle Archives About Us PUZZLE SOLUTIONS
I've been down loading your free puzzles for quite some time. We love them. -Peggy, OH
Print and Solve!
China produces half of the world's __ - about 3 billion tons a year
Extracting shale oil is more expensive than extracting __ oil
A pumpjack pulls oil from a well using a __ and moving head
Some oil fields require gas or __ injection to raise oil to the surface
Petroleum is stored in __; Natural gas is often stored underground
For years, natural gas was __ at refineries since it could not be sold
Coal produces about twice as much __ dioxide as natural gas
Petroleum and coal supply the majority of the world's __ needs
__ fuels come from decomposed ancient plants and animals
__ gas can be found in oil fields or in its own reserves
The world __ over 40 times more oil now than in 1930
Some estimate that current petroleum reserves may be __ in 80 years
Directional __ techniques can access previously unreachable resources
__, or hydraulic fracturing, breaks rock for natural gas extraction
__ is made from refined petroleum and powers most cars
__ oil drilling started after WWII in the Gulf of Mexico
Petroleum can be transported by ship, truck, or __
Crude oil and gas are turned into marketable products at a __
World __ of natural gas are expected to last over 200 years
China, Brazil, Estonia, the U.S., __ and Canada extract shale oil
Petroleum is used to create plastics and organic __
ExxonMobil, Saudi Aramco, Royal Dutch Shell and Chevron are oil __
The __ industry is the world's largest in terms of dollar value
Oil, gas and coal are non-__ resources which will eventually be gone
Burning fossil fuels products releases carbon dioxide into the __
Shale oil extraction is known as an unconventional oil __ process
Mud logging measures the __ content while an oil well is drilled
__ __, Iraq, Iran, Venezuela, Canada and Russia have the most oil
©2015 Clue Search Puzzles™ All Registered Trademarks are the properties of their respective owners. Visit us at

Click Here for our traditional Full-Size, Printer-Friendly Adobe™ PDF Version
Choose From the Categories Below For HUNDREDS of Free Clue Search Puzzles!
For a COMPLETE LIST of puzzles, please visit our Puzzle Archives or use the Search Box on our Home page!
America (73 puzzles)
From sea to shining sea!
Animals (12 puzzles)
Favorite four-legged creatures!
Around the House (25 puzzles)
Everyday items!
Around Town (12 puzzles)
Things you see in your daily errands...
Arts and Literature (33 puzzles)
Explore the World's Best Talent!
Business (24 puzzles)
Working hard, or hardly working?
Famous People (32 puzzles)
Popular Celebrities and Politicians!
Food (26 puzzles)
Chew on this...
Games and Hobbies (11 puzzles)
Great ways to spend your spare time!
Health (24 puzzles)
Tips for keeping fit!
Language Arts (23 puzzles)
Express Yourself!
Movies (54 puzzles)
Hold my popcorn...
Mythology (16 puzzles)
Fantastical and powerful creatures!
Nature (14 puzzles)
Part of the Great Outdoors!
Music (74 puzzles)
Popular bands and artists!
Religion (52 puzzles)
Favorite people and stories!
School Life (10 puzzles)
The pursuit of higher education!
Science (32 puzzles)
Making modern life possible!
Special Days (51 puzzles)
There's always a day to celebrate!
Sports (32 puzzles)
Rally behind your favorite team!
Television (16 puzzles)
Sixty years and nothing's on...
Transportation (20 puzzles)
There are many ways to get there!
U.S. History (23 puzzles)
American History through puzzles!
World Studies (28 puzzles)
Get out there and see it all!