Born-Digital or AnalogAnalogTranscriptPetroleum. Colorado Nine out of ten wells drilled are dry. 2nd in Sunday series. Post Je 1, 1975 p.1G,5G Increase in state petroleum output: annual statistics. 144N Trend S 21, 1975 p.5 Sun Oil Company reorganizes, creating four new sub- sidiaries in Colorado. RM Journal N 5, 1975 p.1,7 Governor's proposed severance tax may force independent oilmen to reduce Colorado operations. RMN Ja 17, 1976 p.6CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng