The US Environmental Protection Agency ("USEPA") announced yesterday that it sent voluntary information requests to nine companies in the oil and gas industry requesting information regarding hydraulic fracturing. Specifically, USEPA stated that it is "seeking information on the chemical composition of fluids used in the hydraulic fracturing process, data on the impacts of the chemicals on human health and the environment, standard operating procedures at their hydraulic fracturing sites and the locations of sites where fracturing has been conducted." USEPA indicated that it is seeking data as part of a broad scientific study, which Congress in 2009 directed the Agency to conduct to determine whether hydraulic fracturing has an impact on drinking water and public health. Responses to these requests have been requested within 30 days and USEPA has asked the nine recipients of the requests to inform them within 7 days if they do not plan to provide all of the requested information.