Press Esc to close



For full content view: Log in Now!

  • Is Utah's “Jurassic Wedge" a major petroleum province?

    R. Sorkhabi and G. Nash

    The recent discovery and development of a new oil field in the central Utah fold-and-thrust belt has put Utah in the spotlight for renewed onshore exploration in the Rocky Mountain region of North America, Fig. 1. This would not have been surprising a few decades ago, but after major oil companies drastically reduced their ventures in the Rockies, the discovery, by the Wolverine Oil & Gas Corp., has amplified significance. REGIONAL FRAMEWORK Utah is divided into four physiographic regions: Central Rocky Mountains (northwest), Colorado Plateau (east), Basin and Range province (west) and the High Plateaus (Transition Zone) in central Utah. The Central Utah Fold-and-Thrust Belt is largely included in the Transition Zone, although it does extend westward. The Transition Zone is structurally complex, having being affected by the compressional Sevier orogeny of Late Jurassic-Eocene, as well as Basin-and-Range extensional tectonics and volcanism of Oligocene-Neogene.

This area of the site is restricted. In order to gain access, please either Log In, or subscribe to World Oil.

Two options are available to you for creating an account.

1. Get a Free Trial Subscription to World Oil Magazine and gain immediate access to select content on World Oil Online.

Start a Free Trial Subscription and gain immediate access to the complete current issue of World Oil Magazine. Plus, you’ll receive 3 upcoming issues of World Oil Magazine in print or digital format.* You also receive access to the Energy Events Calendar, Industry Statistics and WO Wire’s news and industry coverage.

Free Trial

2. Purchase a subscription to World Oil magazine and gain immediate and complete access to World Oil Online. As a Total Access subscriber you will have access to all areas of the site available to registered users and free subscribers as well as having access to such premium content areas as:

  • The Archives section containing over ten years of complete magazine archives,
  • The WO DataHub's engineering tables and directories,
  • The World Oil annual forecasts, including past predictions,
  • Select World Oil technical handbooks,
  • And much, much more!


Physical copies of this content may be available for purchase. Visit the Reprints & Back Issues section.

If you are already a paid subscriber and do not have access, please email



Engineering Data Tables

World Oil's specialized upstream Engineering Data Tables featuring the Drill Bit Classifier, Tubing Tables and more. Get Total Access today.


2013 Fracturing Technology

2013 Fracturing Technology


Upcoming Events