Danaos Corp might be on the verge of a growth spurt, having given itself more debt runway.

The John Coustas-led company lowered its debt by about $551m in the second quarter by changing financial covenants and extending maturities until the end of 2023.

"We are currently fully compliant with all terms of our debt agreements and the company is now free to resume its pursuit of growth opportunities with the goal of creating value for its shareholders," chief executive Coustas said.