It is marked ORACLE. Was it always marked thus?
No, but Oracle "bought" Sun Microsystems, who made Open Office and Star Office (the commercial version), so that is why the name appears.
That has meant some of those who worked on the project have set up another version, LibreOffice, through a group called The Document Foundation as there were fears that Oracle would close down OpenOffice.org like they did when they acquired OpenSolaris, so you effectively have a "fork" in the project with two distinct versions. Since LibreOffice is now the one that seems to be the choice of the Linux distros it may be the one which will get the best updates, etc, for compatibility with MSOffice docs.