The two nations want to put pressure on OPEC producers to keep prices under control, he said in New Delhi on Wednesday, asking not to be identified because of internal policy.
But it's more complicated than that.
Then there was a report that a day before President Trump pulled the United States out of the Iran deal, a senior official of the Trump Administration phoned Saudi Arabia to ask it to help keep oil prices stable should the USA decision on Iran disrupt oil supply, Reuters reported last week. Prices have risen around 60 percent over the previous year.
Oil prices recovered Wednesday after data showed a sharp drop in USA inventories, even as production jumped toward 11 million, while President Trump again blamed OPEC for high oil prices. "Not good!" he wrote on Twitter.
OPEC is the Organization of Petroleum Exporting Countries.
After peaking in May at $80.50 a barrel, prices have pulled back, with the price of Brent crude trading on Wednesday near $76 at barrel, partly in anticipation that the deal may end, and as Saudi Arabia and Russian Federation have already started increasing production.
Prior to Trump's April tweet, the price of oil had soared from $50 a barrel last fall to over $70.
Oil prices eased on Thursday, dragged down by rising output, although strong demand and a drop in US fuel inventories provided the market with some support.
Earlier this month, Bloomberg reported that the Trump administration asked OPEC and Russian Federation to boost oil output. Flynn compared that to eliminating the fourth-largest oil producer in the world.
Meanwhile, output from Venezuela - a major oil exporter to the US - has plunged as the country goes through a political and economic crisis. Most analysts expect production there to go even lower.
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Saudi Arabia has floated several plans to fellow OPEC members as the kingdom seeks consensus before the meeting in Vienna next week.
Longer term, the market could tighten as demand increases if OPEC fails to cover supply shortfalls, the International Energy Agency said on Wednesday. The country boosted production after the US lifted sanctions related to Iran's nuclear program in 2016, but analysts expect output to fall when the Trump administration's decision to withdraw from the deal takes full effect later this year.
USA companies have filled some of the gap created by Venezuela, OPEC and non-OPEC producers including Russian Federation.
U.S. oil production has more than doubled in the past decade, including a 19 percent increase since OPEC's limits took effect in January 2017, according to the U.S. Energy Information Administration.
Oil prices have eased slightly in recent weeks.
The potential collaboration between the two major oil buyers would present another challenge for OPEC, which is facing competition for market share in Asia from the flood of crude pumped in the Gulf of Mexico and shale fields of Texas. Russia's production was 11.1 million barrels a day in June, exceeding its quota, according to sources familiar with the matter. "Not good!" the president said.
OPEC is under scrutiny in Congress, too.
Jason Bordoff, a Columbia University professor and former energy adviser to President Barack Obama, said politicians always fret when gasoline prices rise before a big election.
Dangers included the possibility of higher prices amid trade disruptions prompted by the tariffs war unleashed by the United States against China, but which has also sucked in the EU, Canada and Mexico. Crude oil output was nonetheless down 610,000 bpd on 2017 due to Venezuela's sharp decline. He previously covered the Trump White House. "The real catalyst for the recent rise in prices is the sanctions on Iran". Schumer spoke as he stood in front of the price sign - regular for $3.09 - at an Exxon station on Capitol Hill.