Brazil state-controlled oil firm Petrobras extended the deadline for interested parties to sign non-disclosure agreements in order to access technical, legal and financial information related to seven exploration areas it is seeking to sell. Petroleo Brasileiro, as the company is formally known, said in a stock exchange filing on Friday that it would extend the deadline until Sept. 29 “in view of interest from the market.” The shallow water areas are located in the states of Ceara, Rio Grande do Norte, Sergipe, Rio de Janeiro and Sao Paulo. The Brazilian company is in the midst of a campaign to sell $8 billion worth of assets this year as it seeks to reduce its debt burden. The filing did not say when the original deadline was.