Montebello Avenue

Montebello Avenue

Montebello Avenue was established in 1980 by Dan L. Duncan, who founded Enterprise Products Partners in 1968. The firm operates as a single-family office for the Duncan family, rooted in one of America's great midstream energy fortunes. The office is named after the street in Houston where the Duncan family resided. The firm invests across energy infrastructure, private equity, and real estate, with a focus on direct deals. It holds significant stakes in Enterprise Products Partners, along with positions in midstream assets and pipeline companies. Montebello Avenue also participates in venture capital, notably backing early-stage energy technology firms. The geographic footprint is primarily North America, with select investments in energy assets globally. Montebello Avenue is headquartered in Houston, Texas. The Duncan family foundation was established separately and is not managed by the office. In 2023, Montebello Avenue was not publicly associated with any major new fund or vehicle. The firm maintains a lean team structure typical of a single-family office. The office's structural differentiator is its deep connection to Enterprise Products Partners, one of the largest publicly traded midstream partnerships. This gives Montebello Avenue direct access to infrastructure cash flows and proprietary deal flow. The Duncan family's control over Enterprise creates an unusual alignment of family wealth and operating company governance.