from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Plural form of shale.
  • v. Third-person singular simple present indicative form of shale.


Sorry, no etymologies found.


  • Above the Stony Formation shales is another formation of Non-Calcareous shales.

    worlds in a grain of sand

  • At the same time, smaller U.S. companies developed new techniques to extract oil and gas from dense rock formations known as shales, opening up vast new fields from North Dakota to Pennsylvania.

    Exxon Turns Home as Profit Surges

  • The North American energy boom, which is centered on extracting oil and natural gas from deeply buried rock formations, called shales, is demanding much more equipment and personnel than it traditionally has, Mr. Gould said.

    Schlumberger Profit Climbs 65%

  • Energy companies have uncovered a natural-gas bounty by fracturing hard-to-crack rock formations called shales.

    Regulators Back 'Fracking' in New York

  • Meanwhile, gas output from onshore rock formations known as shales has swelled as producers continue to boost drilling activity, injecting more of the fuel into underground storage facilities and pressuring gas priceslower.

    Natural Gas Tumbles on Storage Data, Weather

  • Chesapeake and other big U.S. energy companies focus on producing oil and gas from dense rock formations called shales, which hold huge volumes of hydrocarbons but are expensive to tap.

    SandRidge to Acquire Arena Resources

  • Gas-bearing rock formations known as shales have changed the view that domestic U.S. natural-gas output would decline and that new supplies would have to come into the U.S. from other countries.

    Cheniere Wins Approval to Export U.S. Liquefied Natural Gas

  • The move further underscores the revolution that has shaken up North American natural gas production in the past decade, as producers unleashed vast onshore gas reservoirs trapped in rock formations called shales, creating a glut of supply in the U.S.

    Macquarie, Freeport to Upgrade LNG Facility

  • The low gas prices stem from large discoveries of gas trapped in tight rock formations known as shales, as well as slack demand for fuel from power plants amid the struggling economy.

    Icahn to Buy Power Company Dynegy

  • But gas output from the Gulf now accounts for about 11% of domestic supply as producers have increasingly moved on shore to tap gas-rich formations known as shales, putting less supply in the path of storms and boosting overall output from these new fields.

    Natural Gas Falls to Seven-Year Low


Log in or sign up to get involved in the conversation. It's quick and easy.