Balsa Research

Port-call and cargo-flow analysis of the Jones Act-eligible oceangoing fleet: 93 Jones Act-eligible vessels (1,000+ GT) cross-referenced by IMO number from the MARAD US-flag fleet dataset against a maritime tracking database, taking the 15 most recent port calls per vessel, with laden-versus-ballast state inferred from draft measurement at each call. Output is a service-segment classification of tanker and cargo activity (Alaska-to-West Coast crude: 14 tankers / ~44% of tanker capacity; Florida service: 20 vessels; Gulf Coast-to-East Coast; inter-Gulf; Washington-to-California product; non-contiguous Hawaii/Puerto Rico/Guam; renewable-diesel Gulf-to-California: 3 tankers) with DWT attribution per segment

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Coverage

Universe, instruments and categories.

Industry: MarineOil & Gas Refining and Marketing
Instruments: equitiescommodities
Categories

Dataset card

Type: not stated
Format: Structured vessel-port-call-draft records underlying a published analytical report, delivered as web analysis plus a downloadable PDF; source inputs are a government tabular US-flag fleet dataset and a third-party vessel tracking/port-call database
Volume: Order 1,400 port-call observations per snapshot (stated methodology: 15 most recent port calls for each of 93 tracked vessels), each with port, time, draft and inferred laden/ballast state, plus a 93-row fleet master with type, DWT, eligibility and active/inactive classification; the analysis window is a two-month operational period as of 1 September 2025
Users: N/A — a 2-person research shop publishing open analytical reports with free PDF downloads rather than an account-based product; no registration or login is disclosed
History: not stated
Update frequency: not stated
Growth: Active but episodic (a November 2025 analysis is the current edition, and the downloadable filename indicates it is a numbered successor to earlier editions of the same vessel analysis; a 2-person shop producing report-by-report rather than maintaining a continuous feed)
Launched: ~2024-2025 for this Jones Act vessel analysis line (a 2-person research firm with no disclosed funding history, publishing numbered editions of the same analysis, current edition dated 3 November 2025)
Delivery: not stated
Entity mapping: not stated
Sample: not stated
Point-in-time: not stated
Licence: not stated

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