MLP / LP Units
A listed partnership interest — no shares, no dividends, no Form 1099; a K-1 and a partner's tax position instead.
A master limited partnership is a publicly traded partnership. The listed security is a limited-partner unit, not a share. Holders receive distributions rather than dividends and receive a Schedule K-1 rather than a 1099, which makes them partners for tax purposes with allocated income, deductions, and a basis that changes with every distribution. Governance rights are typically far narrower than a corporation's.
In detail
A publicly traded partnership avoids entity-level tax only if it satisfies a qualifying-income test, which is why the surviving listed MLPs are concentrated in energy midstream, natural resources, and certain financial and real-property activities. The partnership agreement, not corporate law, is the governing document, and it is usually drafted to limit fiduciary duties, restrict unitholder voting, and reserve broad discretion to the general partner.
Units come to exist through a registration statement and an underwritten offering, then through follow-ons, at-the-market programs, and unit issuance for acquisitions — including dropdown acquisitions from the sponsor, a recurring MLP pattern in which the general partner's parent sells assets into the partnership. The general partner may hold incentive distribution rights entitling it to a rising share of incremental distributions above stated thresholds — an arrangement that has been simplified away at many partnerships through buy-ins, but that still exists and materially affects what reaches the limited partner. Some partnerships have converted to corporate form entirely, which changes the tax reporting for every holder.
A holder owns a limited-partner interest: a claim to allocated income and to quarterly distributions declared by the general partner, with voting rights only where the partnership agreement grants them. Distributions are generally not taxed as received; they reduce the holder's basis, and tax is deferred until sale, at which point a portion of the gain may be recaptured as ordinary income. Holding units can create state filing obligations in the states where the partnership operates, and can create unrelated business taxable income in a tax-advantaged account.
Lifecycle events: ordinary Exchange Act reporting on 10-K, 10-Q, and 8-K; distribution declarations in 8-K or press release; K-1 issuance annually on the partnership's schedule, not the IRS's ordinary calendar; unit issuance in S-1, S-3, and 424B; incentive-distribution-right restructurings, general-partner buy-ins, roll-ups, and conversions to corporate form in S-4, proxy statements, and 8-K; distribution cuts in 8-K.
Before assuming anything, confirm the security is a unit and not a share; confirm the tax form the holder will receive; read the partnership agreement's voting and call provisions, including any right of the general partner to force a purchase of remaining units at a formula price; check the commodity exposure behind the cash flow, since midstream contracts vary from fee-based to fully price-exposed; and read the coverage ratio behind the distribution.
These values are read from the filing linked above. They describe the instrument, not its merits. Nothing here is investment advice.