Identifying the Best Public Land Sites for Development: Domestic oil and gas development, both onshore and offshore, should take place in the right places to minimize harm to the environment as well as to public health and safety. Onshore, the Administration has implemented important reforms that require adequate planning and analysis to identify potential areas where development is most appropriate. These reforms have taken place while millions of acres of public land are offered for exploration and production. In 2010, 29 onshore oil and gas lease sales were held, covering million acres, including.