The European Union released the names of 15 individuals, many of them Russian government officials, whose assets it froze and whose visas it banned due to their role in the crisis in Ukraine.

The decision, published in the EU’s Official Journal early Tuesday, identified Dmitry Kozak, Russia’s deputy prime minister; Russian military chief Valery Gerasimov; Igor Sergun, director of the GRU, the main intelligence directorate in Russia; and pro-Russian separatists in Ukraine, including Denis Pushilin.

The addition of the 15 individuals to the list of those sanctioned by the EU brings the number of sanctioned individuals to 48. The announcement comes just one day after the U.S. decided to broaden its sanctions to include seven Russian government officials and 17 companies closely connected with President Vladamir Putin. The EU has not sanctioned any Russian companies so far, and it is unlikely it will push for tougher sanctions against Russia because of its reliance on the country’s oil reserves.

The new additions to the EU's sanctions list did not include Igor Sechin, the head of Rosneft, an oil company owned almost exclusively by the Russian government. However, the U.S. imposed sanctions on Sechin on Monday. Rosneft has strong ties to Germany, possibly signaling the EU’s reluctance to include Sechin and his company in its sanctions.

In 2010, Rosneft reached an agreement with PDVSA, a Venezuelan state-owned oil and natural gas company that engages in exploring, producing, refining and exporting oil. Rosneft acquired 50 percent of Ruhr Oel, the owner of stakes in four refineries in Germany, from PDVSA. It now owns 100 percent of shares in the Gelsenkirchen refinery in Germany, which has a capacity of 12.8 million tons.

In a statement reported by the privately owned Russian news agency Interfax, Sechin said the sanctions imposed on him by the U.S. will not affect the company’s trade.

“I consider Washington’s latest steps as high assessment of the effectiveness of our work,” he said in a written statement to Interfax.

The full list of the 15 individuals sanctioned by the EU are:

Dmitry Kozak: Deputy Prime Minister. Responsible for overseeing the integration of the annexed Autonomous Republic of Crimea into the Russian Federation.

Oleg Belaventsev: Plenipotentiary Representative of the President of the Russian Federation in the so-called "Crimean Federal District," Non-permanent member of the Russian Security Council. Responsible for the implementation of the constitutional prerogatives of the Russian head of state on the territory of the annexed Autonomous Republic of Crimea.

Oleg Savelyev: Minister for Crimean Affairs. Responsible for the integration of the annexed Autonomous Republic of Crimea into the Russian Federation.

Sergei Menyailo: Acting governor of the Ukrainian annexed city of Sevastopol.

Olga Kovatidi: Member of the Russian Federation Council from the annexed Autonomous Republic of Crimea.

Ludmila Shvetsova: Deputy Co-Chairman of State Duma, United Russia. Responsible for initiating legislation to integrate the annexed Autonomous Republic of Crimea into the Russian Federation.

Sergei Neverov: Deputy Co-Chairman of State Duma, United Russia. Responsible for initiating legislation to integrate the annexed Autonomous Republic of Crimea into the Russian Federation.

Igor Sergun: Director of GRU (main intelligence directorate), Deputy Chief of the General Staff of the Armed Forces of the Russian Federation, Lieutenant-General. Responsible for the activity of GRU officers in Eastern Ukraine.

Valery Gerasimov: Chief of the General Staff of the Armed Forces of the Russian Federation, First Deputy Minister of Defence of the Russian Federation, General of the Army. Responsible for the massive deployment of Russian troops along the border with Ukraine and failure to de-escalate the situation.

German Prokopiv: Active leader of the Lugansk Guard. Took part in the seizure of the Lugansk regional office of the Security Service, recorded a video address to President Putin and Russia from the occupied building. Close links with the "Army of the South-East."

Valeriy Bolotov: One of the leaders of the separatist group "Army of the South-East," which occupied the security service building in the Lugansk region. Retired officer. Before seizing the building, he and other accomplices possessed arms that were apparently supplied illegally from Russia and from local criminal groups.

Andriy Purgin: Head of the Donetsk Republic, an active participant and organizer of separatist actions, coordinator of actions of the "Russian tourists" in Donetsk. Cofounder of the Civic Initiative of Donbass for the Eurasian Union.

Denys Pushylin: One of the leaders of the Donetsk People's Republic. Participated in the seizure and occupation of the regional administration. Active spokesperson for the separatists.

Sergei Tsyplakov: One of the leaders of ideologically radical organization People's Militia of Donbas. He took active part in the seizure of a number of state buildings in Donetsk region.

Igor Strelkov: Identified as member of the main intelligence directorate of the general staff of the armed forces of the Russian Federation (GRU). He was involved in incidents in Sloviansk. He is an assistant on security issues to Sergey Aksionov, self-proclaimed prime minister of Crimea.

Find the original document on the EU’s Official Journal website: http://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=OJ:JOL_2014_126_R_0005&from=EN