---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-075589"
form_type: "8-K"
ticker: "USO"
cik: "0001327068"
company_name: "United States Oil Fund, LP"
filed_at: "2023-06-28T23:59:59+00:00"
generated_at: "2026-06-13T15:26:58.500584+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# USO reports May 2023 net loss of $150M; NAV per share $60.89

## Summary
- Net loss for May 2023: $149.96M, driven by $96.3M unrealized loss on commodity futures.
- Realized trading loss on futures $30.7M; realized loss on swaps $28.4M.
- Net asset value per share at May 31: $60.89 (26.7M shares outstanding).
- Net asset value increased to $1.627B from $1.534B due to net additions of shares.
- Total income loss $149M; expenses $0.95M.

## SEC filing metadata
- accession: 0001104659-23-075589
- form_type: 8-K
- ticker: USO
- cik: 0001327068
- company_name: United States Oil Fund, LP
- filed_at: 2023-06-28T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1327068/000110465923075589/0001104659-23-075589-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1327068/000110465923075589/tm2318578d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-075589
- JSON: https://secwatch.observer/filing/0001104659-23-075589.json
- Plain text: https://secwatch.observer/filing/0001104659-23-075589.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.