He called for "dialogue based on clear foundations" over accusations that Qatar supports extremist groups.
Nawaz Sharif's office issued a statement following his return from Saudi Arabia, where the Pakistani premier, accompanied by army chief Gen. Qamar Javed Bajwa and senior ministers, sought to calm tensions over the standoff.
NAN reports that Qatari Foreign Minister Abdulrahman al-Thani told a news conference in France that Qatar "still had no clue" why the nations cut ties.
Some analysts said the pressure may even lead to regime change in Qatar.
Pakistan's parliament last week passed a resolution urging the Pakistani government to help mediate the crisis, which could turn out to be disastrous for the regional security and stability. Moreover, Turkey has declared its full support to Qatar by adopting a bill on deploying Turkish troops in the country.More news: Penguins to stick with goalie Matt Murray for Game 5
It took years for engineers to discover the field's vast reserves, which shot Qatar to No. 3 in world rankings, behind Russian Federation and Iran, with which it shares the North Field.
Qatar Airways offices were closed in Saudi Arabia and the UAE.
"We're still an AA country, and we're one of the top 20 or 25 globally on our ratings.so I think we're very much better than a lot of people around us", he said.
Many Barca fans have never been happy with Qatar Airways sponsoring the team's famed shirt and its been a fractious relationship over the past six years.
"Qatar is also a country that maintains an independent stance", he said. Saudi Arabia also sealed Qatar's only land border, a key passageway for food imports. But Qatar wields a potential economic weapon if the crisis escalates and countries around the world that depend on its supply may find themselves needing to side with the tiny nation that is home to a major USA military installation.More news: Novak Djokovic loses in French Open 2017 quarterfinals to Dominic Thiem
They added that Qatar ignored repeated calls to abide by the Riyadh Agreement of 2013, its executive mechanism, and the supplementary agreement in 2014. The envoys of Qatar and Gulf states were attending the meeting.
"We were not allowed to give refunds to our passengers", he said.
Erdogan's defence of Qatar, in a parliamentary speech to members of his ruling AK Party, comes after Saudi Arabia, the United Arab Emirates (UAE), Bahrain and Egypt severed relations with Doha last week, accusing it of supporting Islamist militants and Iran - allegations it says are baseless.
Thinking of wearing your Barcelona football shirt on holidays to Saudi Arabia anytime soon?
The world's largest container shipping line, Maersk Line, subsequently said it could not supply Qatar because the so-called "feeder" vessels it uses would no longer be able to transport cargo between the UAE and Doha.More news: France's Deschamps on Hugo Lloris howler: 'He knows it is his fault'