| BAKKEN | BARNETT | EAGLE FORD | GRANITE WASH | HORN RIVER | MARCELLUS | MISSISSIPPI LIME | OPERATOR ASSETS |
| NIOBRARA | PERMIAN | PICEANCE/UINTA | POLAND | UTICA | WOODFORD | AUSTRALIA | COMPLETIONS |

Note: Click here to view the charts associated with this article.Organic-rich mudrocks that we tend to think of as the source rocks for conventional hydrocarbon accumulations can also play host to a variety of less conventional deposits. At shallow depths when still immature, organic shales may contain biogenic gas accumulations or their organic matter (kerogen) can ...
More than twice as many exploration wells will be drilled in shale plays this year as Poland steps up its efforts to tap these oil and gas resources.
The lessons learned by 3Legs Resources in its first two horizontal fracs will enhance production in future wells.