# ClearBridge Energy Midstream Opportunity Fund Inc.

ClearBridge Energy Midstream Opportunity Fund Inc. (CIK 1517518) is an SEC-registered fund company and $1.1B in net assets as of 2026-05-29.

## Registrant

- CIK: 1517518
- File number: 811-22546
- LEI: 549300U6RAJWN6OONX12
- Address: 620 Eighth Avenue, New York, US-NY, 10018
- Phone: 1-888-777-0102
- Net assets: $1.1B
- Total assets: $1.5B
- Latest report: 2026-05-29

## Fund series (1)

| Series | Net assets |
| --- | --- |
| ClearBridge Energy Midstream Opportunity Fund Inc. | $1.1B |

## Largest reported holdings (across all series)

| Holding | Value |
| --- | --- |
| [TARGA RESOURCES CORP](https://search.stillhousedata.com/security/87612G101) | $181.1M |
| [ENERGY TRANSFER LP](https://search.stillhousedata.com/security/29273V100) | $135.5M |
| [WILLIAMS COMPANIES INC (THE)](https://search.stillhousedata.com/security/969457100) | $119.8M |
| [MPLX LP](https://search.stillhousedata.com/security/55336V100) | $106.4M |
| [WESTERN MIDSTREAM PARTNERS LP](https://search.stillhousedata.com/security/958669103) | $100.0M |
| [KINDER MORGAN INC](https://search.stillhousedata.com/security/49456B101) | $98.9M |
| [ONEOK INC](https://search.stillhousedata.com/security/682680103) | $98.5M |
| [ENTERPRISE PRODUCTS PARTNERS LP](https://search.stillhousedata.com/security/293792107) | $87.5M |
| [ENBRIDGE INC](https://search.stillhousedata.com/security/29250N105) | $79.1M |
| [ANTERO MIDSTREAM CORP](https://search.stillhousedata.com/security/03676B102) | $69.3M |
| [PLAINS GP HOLDINGS LP](https://search.stillhousedata.com/security/72651A207) | $63.7M |
| [PLAINS ALL AMERICAN PIPELINE LP](https://search.stillhousedata.com/security/726503105) | $59.9M |
| [TC ENERGY CORP](https://search.stillhousedata.com/security/87807B107) | $53.1M |
| [JPMORGAN TRUST I](https://search.stillhousedata.com/security/4812A2835) | $46.8M |
| [GENESIS ENERGY LP](https://search.stillhousedata.com/security/371927104) | $43.6M |

## More

- [CIK 1517518 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1517518&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/registrant/1517518.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.