The BET-C closed up 11.57 points, or 0.35%, at 3,282.78, while the BET index advanced 6.57 points, or 0.1% at 6,423.04.
BET-FI, which tracks Fondul Proprietatea (FP.RO) and the five regional investment funds SIFs, lost 0.00% on the day, at 31.049,96.
Bucharest benchmark index BET-BK finished the session at 1.251,35, up 0.29% on the day, while energy stocks tracker BET-NG rose 0.91% to 654.82.
Natural gas transporter Transgaz (TGN.RO) closed 0.95% higher at RON185.9 a share. The company said Monday its net profit rose 2% on the year to RON337 million (EUR75 million).
Nuclear power company Nuclearelectrica (SNN.RO) rose 3.37% to RON8.89, while natural gas producer Romgaz (SNG.RO) gained 1.3% to RON33.5.
Dominant oil company OMV Petrom (SNP.RO) finished the session at RON0.4639 a share, up 0.43% on the day. The company is due to release its financial report Wednesday morning. Analysts expect a record profit of RON4.75 billion for 2013.
The wider BET-XT closed at 595.41, barely changed on the day.
Overall trading was 37.13 million lei (EUR8.27 million), with RON17.85 million coming from deals with lender BRD-Societe Generale (BRD.RO). (EUR1=RON4.4873)