No. 18-389October Term 2018Decided Jun 10, 2019
Parker Drilling Management Services, Ltd. v. Newton
Offshore drilling workers on the Outer Continental Shelf get state law only when federal law leaves a gap.
Case status
- Current stage
- Decided
- Latest event
- Decision released Jun 10, 2019
- What it's about
This case asked whether California wage-and-hour rules applied to workers on offshore drilling platforms on the Outer Continental Shelf, where federal law generally controls. The Court held that state law can be adopted there only to fill a gap in federal law, not whenever the state rule relates to the dispute.
Question presented
Whether, under OCSLA, state law is borrowed as the applicable federal law only when there is a gap in the coverage of federal law, as the Fifth Circuit has held, or whenever state law pertains to the subject matter of a lawsuit and · is not preempted by inconsistent federal law, as the Ninth Circuit has held.
- Case path
United States Court of Appeals for the Ninth Circuit / Decision released Jun 10, 2019
- Area
Decided Supreme Court case
Briefing
What it's about
The case asked whether California wage-and-hour rules applied to workers on offshore drilling platforms on the Outer Continental Shelf. On June 10, 2019, the Court said state law can be used there only to fill a gap in federal law, not just because the state rule relates to the dispute.
Vote
The case was argued on April 16, 2019, and decided on June 10, 2019, but the vote count and opinion lineup are not provided here.
Impact
This affects pay and work-rule disputes for offshore workers and drilling companies operating beyond state coastlines. For example, a worker on an offshore platform cannot automatically rely on California wage rules if federal law already covers the issue.
What's next
The Supreme Court has finished this docket action. The parties and lower courts must now apply the Court's rule to any remaining wage-and-hour issues in this case.
What was the main fight in Parker Drilling Management Services, Ltd. v. Newton?
The dispute was over when state law can apply on offshore drilling platforms under OCSLA (a federal offshore law). The Court said state law fills gaps; it does not apply automatically.
Who is most affected by this decision in real life?
Offshore workers and drilling companies are most affected. The decision matters in pay, overtime, and break disputes on platforms off the coast.
What happens next after the Supreme Court's decision?
The Supreme Court's work in this case is done. Lower courts and the parties must use this rule in any further proceedings.
Decision
What the Court decided
Offshore drilling workers on the Outer Continental Shelf get state law only when federal law leaves a gap.
Impact
This affects pay and work-rule disputes for offshore workers and drilling companies operating beyond state coastlines. For example, a worker on an offshore platform cannot automatically rely on California wage rules if federal law already covers the issue.
Not official Court text.
Opinion documents
Related cases




Grounding
- Grounding
- Primary materials plus reporting.
- Note
- Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
- Checked
- Jun 1, 2026
- Method
- Methodology
Primary materials11
Supreme Court docket 18-389
docket | Jun 1, 2026
Primary case document
Supreme Court document | Jun 1, 2026
CourtListener docket record
docket | Jun 1, 2026
Questions Presented
brief | May 24, 2026
opinion
opinion | Jun 10, 2019
Petition
brief | Sep 24, 2018
Lower Court Orders/Opinions
order | Jun 28, 2018
SupremeCourt.gov
official | Jun 1, 2026
SupremeCourt.gov
official | Jun 1, 2026
SupremeCourt.gov
official | Jun 1, 2026
SupremeCourt.gov
official | Jun 1, 2026