# United States Oil Complex — WCS − WTI (Canadian heavy discount)

United States Oil Complex — WCS − WTI (Canadian heavy discount) was −15.93 USD/barrel in 12 November 2026, down 4.79 from 10 November 2026 and down 5.47 from a year earlier.
Over the past available history it has ranged from −25.46 USD/barrel (2 Apr 2026) to 4.43 USD/barrel (8 Apr 2026), averaging −14.54 USD/barrel.

- Source agency: Makrognosis (computed from agency-direct inputs)
- Makrognosis code: `US.OILSPREAD.D.NSA.GRP-WCSWTI`
- Frequency: daily
- Units: USD/barrel
- Coverage: 2025-01-15 to 2026-11-12 (268 observations)
- Page: https://makrognosis.robomacro.com/data/united-states/oil-complex-wcs-wti-canadian-heavy-discount

## Recent data

| Period | Value |
|---|---:|
| 12 November 2026 | −15.93 USD/barrel |
| 10 November 2026 | −11.14 USD/barrel |
| 7 November 2026 | −16.20 USD/barrel |
| 6 November 2026 | −18.60 USD/barrel |
| 4 November 2026 | −7.62 USD/barrel |
| 2 November 2026 | −8.29 USD/barrel |
| 31 October 2026 | −17.91 USD/barrel |
| 29 October 2026 | −17.96 USD/barrel |
| 27 October 2026 | −12.45 USD/barrel |
| 25 October 2026 | −22.60 USD/barrel |
| 24 October 2026 | −22.60 USD/barrel |
| 23 October 2026 | −22.60 USD/barrel |
| 22 October 2026 | −19.47 USD/barrel |
| 21 October 2026 | −18.29 USD/barrel |
| 20 October 2026 | −21.11 USD/barrel |
| 19 October 2026 | −21.07 USD/barrel |
| 18 October 2026 | −22.59 USD/barrel |
| 17 October 2026 | −21.44 USD/barrel |
| 16 October 2026 | −23.24 USD/barrel |
| 15 October 2026 | −22.09 USD/barrel |
| 14 October 2026 | −14.61 USD/barrel |
| 13 October 2026 | −14.46 USD/barrel |
| 12 October 2026 | −15.41 USD/barrel |
| 11 October 2026 | −19.57 USD/barrel |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/US.OILSPREAD.D.NSA.GRP-WCSWTI"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/US.OILSPREAD.D.NSA.GRP-WCSWTI",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```