http://www.drillingtrader.com
I am wanting to combine;
oilfield classifieds
drilling classifieds
oilfield services classifieds
A keyword phrase generator reflected;
oilfield classifieds drilling classifieds oilfield services classifieds
[oilfield classifieds drilling classifieds oilfield services classifieds]
or
oilfield classifieds drilling classifieds oilfield services classifieds
"oilfield classifieds drilling classifieds oilfield services classifieds"
or
oilfield classifieds drilling classifieds oilfield services classifieds
+oilfield +classifieds +drilling +classifieds +oilfield +services +classifieds
I don't know which keyword phrase would be most effective, nor do I understand if I am to combine the two lines, utilized in a keyword phrase or just one.