1/11/2013: DEP, researchers argue over omitted wells; turning butter into methane

- A journal article claims that DEP omitted thousands of wells from last year's impact fee tally. The agency says the researchers misunderstood how the law defines "unconventional" wells. (Post-Gazette)

- New maps show Maryland's shale deposits. (Associated Press)

- Poland is working on a law governing shale gas production. (Associated Press)

- And methane not from underneath your feet, but from the Pennsylvania Farm Show's legendary butter sculpture? (NPR)