(FILES) This file photo taken on July 13, 2009 shows then managing director of Nigerian National Petroleum Corporation -NNPC- Mohammed Barkindo speaking after inspecting the burnt oil pipelines belonging to the Nigerian National Petroleum Corporation at the Altas Cove in Lagos after they have been destroyed with dynamite by the Movement for the Emancipation of Niger Delta. The OPEC oil cartel said on June 2, 2016 that it has appointed Nigeria's Mohammed Barkindo as its new secretary general. / AFP PHOTO / PIUS UTOMI EKPEI

OPEC’s incoming secretary-general said on Thursday that his appointment showed the oil producer group was intent on stronger unity and that he wanted to make a difference when he takes over its top post.

The Organization of the Petroleum Exporting Countries failed to agree a production target at a Thursday meeting but agreed to appoint Nigeria’s Mohammed Barkindo as its secretary-general – the first new post-holder in nearly a decade.

“The fact that OPEC has decided to elect a secretary-general today after so many years of haggling is in itself a positive signal not only to the market but to the international community that OPEC is back, stronger,” Barkindo told a small group of reporters after OPEC’s meeting.

“I am determined to make a difference in this job.” OPEC had since 2012 been looking for a replacement for the current secretary-general, Libya’s Abdullah al-Badri, who was elected acting secretary-general in December until the end of July after serving full terms.

Barkindo has been a key face of the Nigerian oil industry for the past decade. He led the Nigerian National Petroleum Corporation from 2009 to 2010 and served as acting secretary-general of OPEC in 2006.

OPEC has been divided on how to respond to a supply glut that has halved oil prices in the last two years, and tensions between key members Saudi Arabia and Iran have been a highlight of several previous OPEC meetings.

At the last OPEC meeting, in December 2015, the group failed to agree on a formal output target for the first time in years, prompting critics and even some insiders to question its relevance.

The secretary-general is in charge of OPEC’s Vienna headquarters, represents the group on the international stage and can play a role behind the scenes in encouraging member-countries to reach agreement.

Asked whether he was happy about how OPEC manages production policy, Barkindo said there was room for improvement.

“We can do better,” he said. “I have not yet taken over the mantle of leadership. I think in the fullness of time, we should be able to sit down and talk about this.” He starts his three-year term on Aug. 1.