Limited AIS coverage — Terrestrial AIS coverage near Singapore is sparse, so the vessel count here undercounts actual port traffic. Anomalies and signals are measured against Singapore's own baseline — treat the count as a relative trend, not an absolute level.
Singapore
Oil / LNG48
MED CONGESTION
World's largest bunkering port and a key LNG transshipment hub. High tanker and LNG carrier counts signal robust energy trade through the Strait of Malacca. Unusual floating storage indicates supply gluts or demand shocks in crude and LNG markets.
Live Vessel Traffic
Tradeable Assets
How each asset relates to congestion at this port
Stocks
Flex LNG
LNG shipping pure play · highly correlated to Singapore tanker traffic
$114.68
▲ 2.03%
Golar LNG
LNG shipping + infrastructure · moves on floating storage anomalies
$49.61
▼ 1.00%
Futures
WTI Crude (futures)
Floating storage anomalies at Singapore are a direct crude supply signal
$92.41
▼ 2.33%
Natural Gas (futures)
LNG tanker clustering is a leading indicator for Henry Hub prices
$3.23
▼ 2.18%
ETFs
US Oil Fund ETF
ETF version of CL for traders who don't do futures
$148.33
▼ 3.11%
US Natural Gas ETF
ETF version of NG for traders who don't do futures
$11.13
▼ 3.64%
Current Snapshot
48
Total Vessels
13
Anchored
27%
Anchored %
2.7
Avg Dwell (hrs)
Vessel Types
13 vessels anchored (27%)
Anchored tankers holding crude or LNG offshore — elevated counts signal supply glut or demand shock, bullish for storage plays.
34th percentile vs the last 30 days
Tanker Fleet Status
Crude tankers
2
1 at anchor
LNG carriers
0
0 at anchor
0
Inbound empty
ballast · underway
1
Laden
carrying cargo
1
Ballast · anchored
empty · waiting
| Vessel | Status | Cargo | Draught | Destination | Speed |
|---|---|---|---|---|---|
| BAI LU ZUO | underway | Laden | 9.7m | SGP | 2.2kn |
| SEYCHELLES PROGRESS | at anchor | Ballast (Empty) | 7.3m | SGSIN PEBGC | 0.2kn |
Cargo status inferred from AIS-reported draught · ballast = empty inbound to load · laden = carrying cargo
Energy Fundamentals
EIA weekly · spreads calculated liveUS Crude Stocks
426,398k
bbls
+3.0M
BUILD
US commercial crude stocks — build = bearish, draw = bullish
Cushing Stocks
23,748k
bbls
+2.3M
BUILD
WTI delivery hub — high stocks suppress futures price
Brent-WTI Spread
$5.03
BZ − CL
Widening = logistics stress or US supply glut. Normal range $1–$5.
3-2-1 Crack Spread
$59.32
Refinery margin / bbl
High = strong product demand, bullish for crude. Low = demand weakness.
History
Congestion score · grey band = 7d normal range · Vessel count (dashed) · FLEX price (purple)
Lead-lag: over the last 30 days, Singapore congestion led FLEX by 4 days · r = +0.69 (strong positive) · 10-day sample, directional not predictive
Port Throughput
14
Currently in port
186
Completed calls
2.7h
Avg dwell time
| Vessel | Class | Arrived | Departed | Dwell |
|---|---|---|---|---|
| SINDO 12 | unknown | 2026-09-27 | 2026-09-27 | 2h |
| HAI YUN | unknown | 2026-09-27 | 2026-09-27 | 2h |
| BRIDGE | unknown | 2026-09-27 | 2026-09-27 | 2h |
| ROTTERDAM | unknown | 2026-09-27 | 2026-09-27 | 2h |
| TYEE | unknown | 2026-09-27 | 2026-09-27 | 3h |
| TB BUANA 1302 | unknown | 2026-09-26 | 2026-09-27 | 6h |
| KOTA LARIS | unknown | 2026-09-27 | 2026-09-27 | 2h |
| CHALLENGER | unknown | 2026-09-27 | 2026-09-27 | 2h |
| HIGH STANDARD | unknown | 2026-09-27 | 2026-09-27 | 2h |
| BS HAIPHONG | unknown | 2026-09-27 | 2026-09-27 | 2h |
Signal History
3d ago
Singapore Congestion Spike: Bullish energy
Singapore shows Congestion score 100 is 4.6σ above same-hour baseline (avg 53). This typically leads energy markets by 5-10 days, supporting a bullish read on FLEX (currently $114.45, +5.7% 5d). Note: the asset has already moved in this direction over the past week, so part of the move may be priced in.
Triggered By
Congestion score 100 is 4.6σ above same-hour baseline (avg 53)
Trade Idea
Long FLEX (currently $114.45, +5.7% 5d) while congestion holds above 100 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (3d ago) — check the live tape before acting.
Entry
Congestion holds above 100 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (53) within 48h, or FLEX falls below $111.02
Horizon
3-7 days
Affected Assets
FLEX
$114.68
▲ 2.03%
closed
GLNG
$49.61
▼ 1.00%
closed
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ Much of the move may already be priced in. An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
5d ago
Singapore Vessel Drop: Bearish energy
Singapore shows Vessel count 25 is 1.8σ below same-hour baseline (avg 68). This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $86.26, -1.9% 5d).
Triggered By
Vessel count 25 is 1.8σ below same-hour baseline (avg 68)
Trade Idea
Short CL (currently $86.26, -1.9% 5d) while vessel count holds below 25 into the next poll; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (5d ago) — check the live tape before acting.
Entry
Vessel count holds below 25 into the next poll
Invalidation
vesselCount reverts toward baseline (68) within 48h, or CL rises above $88.85
Horizon
3-7 days
Affected Assets
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
6d ago
Singapore Congestion Spike: Bullish energy
Singapore shows Congestion score 89 is 2.2σ above same-hour baseline (avg 61). This typically leads energy markets by 5-10 days, supporting a bullish read on FLEX (currently $108.51, -6.3% 5d).
Triggered By
Congestion score 89 is 2.2σ above same-hour baseline (avg 61)
Trade Idea
Long FLEX (currently $108.51, -6.3% 5d) while congestion holds above 89 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (6d ago) — check the live tape before acting.
Entry
Congestion holds above 89 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (61) within 48h, or FLEX falls below $105.25
Horizon
3-7 days
Affected Assets
FLEX
$114.68
▲ 2.03%
closed
GLNG
$49.61
▼ 1.00%
closed
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
7d ago
Singapore Congestion Relief: Bearish energy
Singapore shows Congestion score 42 is 1.7σ below same-hour baseline (avg 59). This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $87.47, +0.8% 5d).
Triggered By
Congestion score 42 is 1.7σ below same-hour baseline (avg 59)
Trade Idea
Short CL (currently $87.47, +0.8% 5d) while congestion holds below 42 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (7d ago) — check the live tape before acting.
Entry
Congestion holds below 42 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (59) within 48h, or CL rises above $90.09
Horizon
3-7 days
Affected Assets
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
8d ago
Singapore Congestion Spike: Bullish energy
Singapore shows Congestion score 74 is 2σ above same-hour baseline (avg 56). This typically leads energy markets by 5-10 days, supporting a bullish read on FLEX (currently $109.02, +0.9% 5d).
Triggered By
Congestion score 74 is 2σ above same-hour baseline (avg 56)
Trade Idea
Long FLEX (currently $109.02, +0.9% 5d) while congestion holds above 74 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (8d ago) — check the live tape before acting.
Entry
Congestion holds above 74 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (56) within 48h, or FLEX falls below $105.75
Horizon
3-7 days
Affected Assets
FLEX
$114.68
▲ 2.03%
closed
GLNG
$49.61
▼ 1.00%
closed
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
9d ago
Singapore Congestion Spike: Bullish energy
Singapore shows Congestion score 76 is 2.6σ above same-hour baseline (avg 55). This typically leads energy markets by 5-10 days, supporting a bullish read on FLEX (currently $107.9, -4.2% 5d).
Triggered By
Congestion score 76 is 2.6σ above same-hour baseline (avg 55)
Trade Idea
Long FLEX (currently $107.9, -4.2% 5d) while congestion holds above 76 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (9d ago) — check the live tape before acting.
Entry
Congestion holds above 76 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (55) within 48h, or FLEX falls below $104.66
Horizon
3-7 days
Affected Assets
FLEX
$114.68
▲ 2.03%
closed
GLNG
$49.61
▼ 1.00%
closed
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
12d ago
Singapore Anchored Backlog: Bearish energy
Singapore shows 52% anchored (1.7σ above baseline avg of 31%) — elevated floating storage or backlog signal. This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $86.8, -3.7% 5d).
Triggered By
52% anchored (1.7σ above baseline avg of 31%) — elevated floating storage or backlog signal
Trade Idea
Short CL (currently $86.8, -3.7% 5d) while anchored ratio stays near 52% into the next poll; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (12d ago) — check the live tape before acting.
Entry
Anchored ratio stays near 52% into the next poll
Invalidation
anchoredRatio reverts toward baseline (31) within 48h, or CL rises above $89.4
Horizon
3-7 days
Affected Assets
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
13d ago
Singapore Anchored Backlog: Bearish energy
Singapore shows 58% anchored (2.4σ above baseline avg of 29%) — elevated floating storage or backlog signal. This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $86.8, -3.7% 5d).
Triggered By
58% anchored (2.4σ above baseline avg of 29%) — elevated floating storage or backlog signal
Trade Idea
Short CL (currently $86.8, -3.7% 5d) while anchored ratio stays near 58% into the next poll; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (13d ago) — check the live tape before acting.
Entry
Anchored ratio stays near 58% into the next poll
Invalidation
anchoredRatio reverts toward baseline (29) within 48h, or CL rises above $89.4
Horizon
3-7 days
Affected Assets
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
14d ago
Singapore Anchored Backlog: Bearish energy
Singapore shows 51% anchored (2.9σ above baseline avg of 26%) — elevated floating storage or backlog signal. This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $86.8, -3.7% 5d).
Triggered By
51% anchored (2.9σ above baseline avg of 26%) — elevated floating storage or backlog signal
Trade Idea
Short CL (currently $86.8, -3.7% 5d) while anchored ratio stays near 51% into the next poll; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (14d ago) — check the live tape before acting.
Entry
Anchored ratio stays near 51% into the next poll
Invalidation
anchoredRatio reverts toward baseline (26) within 48h, or CL rises above $89.4
Horizon
3-7 days
Affected Assets
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
16d ago
Singapore Anchored Backlog: Bearish energy
Singapore shows 50% anchored (2.1σ above baseline avg of 26%) — elevated floating storage or backlog signal. This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $88.03, -1.8% 5d).
Triggered By
50% anchored (2.1σ above baseline avg of 26%) — elevated floating storage or backlog signal
Trade Idea
Short CL (currently $88.03, -1.8% 5d) while anchored ratio stays near 50% into the next poll; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (16d ago) — check the live tape before acting.
Entry
Anchored ratio stays near 50% into the next poll
Invalidation
anchoredRatio reverts toward baseline (26) within 48h, or CL rises above $90.67
Horizon
3-7 days
Affected Assets
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
21d ago
Singapore Anchored Backlog: Bearish energy
Singapore shows 50% anchored (2.0σ above baseline avg of 25%) — elevated floating storage or backlog signal. This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $88.77, -2.2% 5d).
Triggered By
50% anchored (2.0σ above baseline avg of 25%) — elevated floating storage or backlog signal
Trade Idea
Short CL (currently $88.77, -2.2% 5d) while anchored ratio stays near 50% into the next poll; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (21d ago) — check the live tape before acting.
Entry
Anchored ratio stays near 50% into the next poll
Invalidation
anchoredRatio reverts toward baseline (25) within 48h, or CL rises above $91.43
Horizon
3-7 days
Affected Assets
CL
$92.41
▼ 2.33%
NG
$3.23
▼ 2.18%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
About Singapore
Why does Singapore port congestion matter for traders?
World's largest bunkering port and a key LNG transshipment hub. High tanker and LNG carrier counts signal robust energy trade through the Strait of Malacca. Unusual floating storage indicates supply gluts or demand shocks in crude and LNG markets.
Which stocks, futures, and ETFs are correlated with Singapore?
HarborSignal tracks FLEX, GLNG, CL, NG, USO, UNG against Singapore vessel activity. Port flows tend to lead these markets by roughly 5–10 days.
How is Singapore congestion measured?
Vessel positions are collected hourly from AIS transponder data. A congestion score is derived from vessel count and the anchored ratio, then z-scored against a 30-day same-hour baseline to flag anomalies.