Of course she was. Excellent logical points made in this article!
Was Valerie Plame Really a Covert Agent?
~snip~
But putting all this aside, let's take a look at why an agent would retain her covert status years after leaving the field. Although the scenario that follows deals with Plame, it could just as well apply to any of thousands of other American spies working for the CIA or any other U.S. intelligence agency. I have friends who really are energy consultants working for real private energy companies. They generally specialize in one country at a time, living overseas and making frequent trips back to the U.S. to consult with the head office or just to visit family. While overseas, most of their work consists of meeting with officials of foreign energy companies and with officials of foreign governments.
In the case of Plame, she undoubtedly did the same, never revealing, of course, that she was really a spy. In addition, she could have had regular dealings with other covert CIA agents in her target country. Those who believe that this case is much ado about nothing must assume that when Plame left the field and returned to Langley, she cut off all contact with anyone she had ever met in the energy field. In reality, she probably told her most important foreign energy contacts that her company had reassigned her to the home office back in the United States, encouraged them to keep in touch by email, promised to visit them next time she was in country and invited them to look her up if they ever came to the United States. By keeping her cover, the CIA left open the possibility that they could send her back overseas for the occasional visit and even that she might someday be reassigned overseas, still posing as an energy consultant. In fact, it is quite possible that one or more of her unsuspecting contacts could, in the meantime, have been promoted to an important position in their company or in their government, which would have made her continuing covert status extremely useful.
http://www.huffingtonpost.com/david-wallechinsky/was-valerie-plame-really-_b_9600.html