"We have signed a special program for a USD 5-billion loan to progressively increase oil production in the coming months," Maduro said on state television Tuesday night in a broadcast from China, where he is on a visit seeking support for Venezuela's sinking economy.
The two countries will negotiate "joint projects in the areas of reconnecting oil wells and services associated with crude production," the socialist leader said.
China, a major political and economic ally, also agreed to a gold mining deal and a joint development plan through 2025, he added.
Maduro's cash-strapped government had already secured a USD 5-billion loan from China in April.
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Venezuela's state oil giant, PDVSA, the engine of the economy, saw output fall by four percent last year, to 2.78 million barrels a day.
The slide in global oil prices -- down from around USD 120 a barrel in June last year to less than USD 50 now -- has exacerbated the crisis gripping Venezuela's economy, hit by runaway inflation, shrinking reserves and severe shortages of basic goods.