Also known as:
Mazeikiai is a large, medium complexity refinery located in Lithuania.
The refinery is owned and operated by PKN.
The refinery receives most of its crude by ship through the Butinge oil terminal in Palanga, Lithuania, which is also owned by PKN. Crude is moved 92 km to the refinery by pipeline.
Complexity: 9.7
Atmospheric distillation - 205 kbpd
Reformer - Continuous (CCR) unit
Oxygenates plant
Propylene splitter
Sulfur pelletized
1980 - Refinery commissioned
1980 – Commissioned LK-6U Unit (atmospheric rectification, catalytic reforming, distillates hydrotreating, and a gas plant)
1984 – Commissioned of the second LK-6U Unit
1989 – Commissioned KT-1/1 Unit (heavy fuel oil vacuum distillation, visbreaking, distillates hydrotreating, catalytic cracking, absorption, and gas fractionation)
1995 – State-owned company Nafta reorganized into joint-stock company Mazeikiu Nafta, with around 90 percent of shares remaining in the government’s hands and the other 10 percent distributed among employees
1998 – Reorganization of the joint-stock companies Mazeikiu Nafta, Butinges Nafta (operator of the Butinge Terminal), and Naftotiekis (operator of Lithuanian pipelines), with merging the latter two into Mazeikiu Nafta
1999 – started operations in the Butinge Terminal
1999 – the Lithuanian Government, Mazeikiu Nafta, and Williams International sign an agreement, under which Williams International became a 33-percent owner and operator of Mazeikiu Nafta
2002 – YUKOS acquired a 26.85-percent stake in Mazeikiu Nafta
2002 – YUKOS acquired from Williams International an additional 26.85 percent stake and associated rights in Mazeikiu Nafta, assuming all rights and obligations of Williams International under the 1999 agreements with the Lithuanian Government including operator rights in Mazeikiu Nafta
2003 – Isomerization Unit PENEX commissioned
2004 – Rail Car On-spot Loading Facilities commissioned
2005 – Mazeikiu Nafta acquire2 the majority interest in AB Mazeikiu Elektrine (Power Station)
2006 – PKN ORLEN, Polish company, became the major shareholder of Mazeikiu Nafta
2007 – FCC Gasoline Hydrotreatment Unit commissioned
2009 – Commissioned new Hydrogen Generation Unit
2009 - Public Company Mazeikiu Nafta changes the name to Public Company ORLEN Lietuva
2013 – Commissioned new Sulfur Degassing and Pelletization Unit
2019 – Electrostatic precipitator installed in Fluid Catalytic Cracking Unit, and put into operation. Propylene splitter added.
2025 - Bottoms upgrading project at cost of EUR970m, including a resid hydrocracker, alkyation unit (6kb/d STRATCO sulfuric acid) and acid regeneration plant (75 t/d MECS unit)