The Mumbai-based company owned by Asia's richest man Mukesh Ambani was forced to cap crude imports from the South American country in March following pressure from the United States.
It also stopped exporting diluents needed to process thick Venezuelan crude to the country.
But under the terms of the barter arrangement, the energy-to-telecoms conglomerate has resumed crude imports from the Latin American country, Reliance spokesperson Tushar Pania told AFP.
The deal will help ease Venezuela's inventories after US sanctions left its state-owned oil company PDVSA with huge volumes of unsold crude.
"Reliance Industries is exporting diesel and importing crude oil from Venezuela in a barter arrangement," Pania said.
"This is in compliance with US sanctions and Reliance is confident of adhering to them," he added, declining to say when the company had resumed the shipments.
Venezuela -- a once-rich oil-producing nation -- is in the grip of an economic crisis and a political standoff between President Nicolas Maduro's government and opposition leader Juan Guaido.
The situation has worsened with successive rounds of US sanctions against Maduro's government, including steps that have severely curbed its oil exports. PetroWatch editor Madhu Nainan told AFP the barter agreement was "a win-win situation for both as Venezuela is battered with crippling sanctions while Reliance aims to boost its profitability".
"With this barter deal, Reliance can procure cheap crude... which will help their refining margins." Refining margins are a key profitability gauge for Reliance, which operates the world's biggest refining complex in Gujarat state.
India became the top importer of crude from Venezuela in February after US President Donald Trump issued a de facto ban on imports. In addition to Reliance, Nayara Energy -- a Mumbai-based company that is partly owned by Russia's Rosneft -- is also a buyer of Venezuelan crude.
