No individual Oasis Creek listing appears in the current Region 4 synopsis. Handle it as part of the Houston Creek / Upper Duncan River tributary context inside the Duncan Lake tributaries bucket (4-27): bull trout catch-and-release, plus the regional stream defaults, no fishing Apr 1 to June 14, single barbless hook year-round, winter release Nov 1 to Mar 31. Confirm the current synopsis, or call the Region 4 office, before fishing it.

NRCan's official Kootenay Land District listing places Oasis Creek at 50.933611, -117.370000. The local waterway index records it as a short, second-order stream (near the headwater end of the network, on a scale that runs from 1 for a headwater trickle up to 6 or more for a full river), roughly 2 km long, flowing into Houston Creek before that creek reaches the Duncan River. No named-line fish observations and no channel-geometry (width, gradient, discharge) survey have been logged for Oasis Creek itself.

Nothing in provincial fish-inventory data or guide coverage points to Oasis Creek as a destination. Houston Creek, the water it joins, carries direct bull trout records and sits inside BC Hydro and Okanagan Nation Alliance monitoring (report DDMMON-5) that tracks bull trout spawning through the Upper Duncan after they pass Duncan Dam, alongside the Westfall River and Giegerich Creek. Oasis itself has no direct observation in that record, but as a small, connected headwater tributary of a named spawning creek it should be treated as habitat and conservation water first, not a place to prospect casually. No guide or outfitter names Oasis Creek directly.

No hatch survey is on record for Oasis Creek. The working cold headwater-tributary pattern seen through the Upper Duncan is small fish and fry only where connected habitat supports them, plus stoneflies, caddisflies, mayflies, midges and terrestrials. Where it is legal and away from any spawning fish, that points to an Elk Hair Caddis, Adams, Stimulator, Royal Wulff, Prince Nymph, Hare's Ear or Pheasant Tail. Keep streamer use conservative unless fish presence and rules are confirmed on the ground.

No public access route, road condition or named trailhead has been confirmed for Oasis Creek. Treat it as a scouting objective inside the Upper Duncan drainage rather than a mapped destination until a route is verified on the ground.