Both companies coming from near bankruptcy, claiming to turn around things and meanwhile back into massively overpromising and underdelivering. With BLK I would even dare to speak of "lying and betraying". Big difference for OGX is that being located in Brasil rather than WA gives a bit more room for "excuses".
Holding both shares myself and "burning cash on both ends"
I am neiter a "glass half full" or "glass half empty" guy - for me as an engineer "the glass would be twice as big as it needs to be". Should have sold out as a consequence and can't really say why I am still holding, may be kind of "trusting one's gut" at least for OGX...