(Adds production and export figures, context on earnings)
CARACAS, Oct 28 (Reuters) - Venezuelan state oil company PDVSA generated revenue of $59.18 billion in the first six months of 2015, President Eulogio del Pino said on Wednesday during a presentation of preliminary results.
The company's "integral earnings" were $13 billion, Del Pino, who is also the nation's oil minister, said during a hearing of Congress's finance committee.
The presentation did not include year-earlier figures or any further breakdown of financial information. Economists tend to focus on the company's revenue from oil and gas operations, which Del Pino did not provide.
PDVSA has sold $11.9 billion in hard currency to Venezuela's central bank this year to Oct. 26, Del Pino said.
Crude production including natural gas liquids was 2.916 million barrels per day (bpd), while average exports were 2.416 million bpd.
PDVSA reported full-year revenue of $128.44 billion for 2014 and $134.33 billion for 2013. In both years, at least 15 percent of revenue came from financial operations such as currency exchange and the sale of gold mining assets.
Low oil prices have boosted investor concerns that PDVSA could struggle to pay off foreign debt.
Del Pino said the company was paying down the principal on its $1.44 billion 2015 Global Bond, which matures on Wednesday.
PDVSA is also preparing to make a payment on its 2017 Global Bond, he said. It has until Monday to pay $2.05 billion in amortization and an additional $264 million in interest on that bond, according to Thomson Reuters data. (Reporting by Corina Pons; Writing by Brian Ellsworth; Editing by Lisa Von Ahn)